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You’ve heard people say, “Sales is a grind.”

And they’re right. Sales requires relentless effort. You’ve got to make the calls, run the process, deal with internal roadblocks, handle piles of rejection, and show up every day with a smile on your face, ready to do it all over again.

But the dirty little secret is that plenty of salespeople push through the grind day after day and still don’t seem to get ahead. They put in the effort and work hard, but get nowhere. All grind, but little progress.

Here’s the truth they don’t always tell you: You can grind yourself into the ground and still fail if you don’t have the right mindset and belief system underpinning that effort.

To keep it real, I’m the person who shouts from the rooftops that you’ve got to “grind to shine.” I say that in my book Fanatical Prospecting. It’s printed on coffee mugs. I love that mantra because it’s about doing the things other people are unwilling to do.

But raw grind isn’t always enough. Sometimes, we need to pair grinding it out with tenacity.

Tenacity is a Sustainable Sales Trait

In sales, tenacity is a more sustainable trait than raw grind or pure persistence because tenacity combines persistent determination with process certainty and strategy.

Grind is about doing the daily, repetitive, rejection-dense work required for success, but it can quickly lead to frustration and burnout when it isn’t paired with enduring faith that the hard work is going to pay off. 

Tenacity, on the other hand, is grinding combined with the absolute certainty that what you expect to happen is eventually going to happen.

That’s the difference between the rep who grinds hard for a quarter, feels that they are getting nowhere, and burns out because they’re not seeing results, and the sales professional who consistently runs the sales playbook, without immediate evidence that it’s working, because they have faith that the process will eventually produce their desired outcomes.

Uncertainty Causes You to Constantly Change Your Approach

One big problem with grinding without certainty is that when results don’t show up on your impatient timeline, you start changing everything.

You make 100 calls this week using one approach. Next week, you try a different script. The week after that, you switch your targeting. Then you read an article about social selling and abandon cold calling altogether.

You’re working hard, but you’re also second-guessing every move. You change your messaging before you’ve run it long enough to know if it works. You abandon techniques after a handful of attempts. You skip or change steps in your company’s sales process after a couple of deals don’t go your way. 

When you put in massive effort, but spread that effort across ten different approaches instead of trusting the proven process and playbook long enough to let it produce results, you end up in an exhausting, demoralizing quagmire of chaos and eventually give up. 

The True Meaning of Process Certainty

When I say “certainty,” I’m not talking about positive thinking or affirmations or manifestation or any of that rah-rah motivational stuff.

Certainty in sales means knowing—not hoping, but knowing—that if you do the right things the right way for long enough, the outcomes are inevitable. That you get the Sales Gravy. 

That’s what allows tenacious salespeople to keep grinding when others quit. They’re not grinding on blind faith. They’re grinding on proven evidence that the process works. 

For example, in Fanatical Prospecting, I explain the 30 Day Rule, which states that the prospecting you do in any given 30 days tends to pay off over the next 90 days. 

The 30-day rule is always in play. It is proven. It is truth. But you’ll never see it work if your prospecting is sporadic rather than consistently executed every single day. 

The Three Types of Certainty that Power the Tenacity Engine

If you want to develop real tenacity—the kind that sustains you through tough markets, rough quarters, and slumps—you need to build certainty in three core areas.

1. Certainty in Your Value

You need conviction that what you’re selling genuinely improves your customers’ businesses in a meaningful way.

When you have that certainty, something shifts. You stop feeling like you’re bothering people or being pushy and start feeling like you are helping them. That you belong there. 

And buyers can feel this difference. They sense and respond to your confidence, enthusiasm, and passion for helping them. Which gives you even more certainty.

2. Certainty in Your Process

You need confidence that your sales process and playbook actually work. 

Most sellers have been provided a proven, repeatable approach to building pipeline, qualifying opportunities, running discovery, handling objections, building consensus, negotiating, and closing business. 

If you don’t have a process, read or listen to my books Fanatical Prospecting, The LinkedIn Edge, Sales EQ, Objections, Virtual Selling, and Inked. Collectively, these books give you a powerful playbook for success. 

But regardless of whether you get your playbook from your company or me, believing that it will work for you is a choice and mindset that only you can step into. 

If you are constantly second-guessing the process every time things don’t work out the way you want them to, you are doomed to frustration and failure. You’ll be a slave to flavor-of-the-day thinking and winging it from call to call and situation to situation.

But when you trust the process, you’ll be steady, consistent, and confident. And you’ll relax because you know that you won’t win every time, no one does, but over time, because your process is proven, win probability is in your favor. 

3. Certainty in Probability

This is the big one. You need certainty that the math works in your favor over time.

The simple truth is that sales is a numbers game played with human emotions. Not every call will book a meeting. Not every meeting will turn into an opportunity. Not every opportunity will close.

But if you control the inputs—activity level, message quality, process execution—the outputs become predictable and win probability bends in your favor. 

Ultra-high performers understand this at a bone-deep level. They know their numbers and conversion rates. This gives them certainty that the statistics are working in their favor. 

On the other hand, the reps who are winging it are sky high when something goes well and in the dumps when things don’t—without knowing what they did in either situation to affect the outcome. And it is on this emotional roller coaster where they eventually burn out and quit. 

Top performers never board this emotional roller coaster because they’re anchored to math, not mood.

How to Transform Sales Grind into Certainty-Fueled Tenacity

Maybe you’re thinking, “Jeb, this all sounds great, but how do I build this certainty that you speak of?”

Fair question. Here are four ways: 

Track Process Metrics, Not Just Outcomes

If you only measure outcomes—meetings set, deals closed, revenue generated—you’re going to struggle with certainty during the lag time between the grind and results.

So instead, track the inputs like calls, conversation ratios, meetings, next step advances, or proposals delivered.

When you measure the right activities, you can see progress and celebrate small wins even when results aren’t there yet. This builds certainty that the process is working, which sustains your effort through the gap.

Practice Until You Don’t Have to Think

Competence begets certainty. Competence comes from practice and repetition.

Role-play your cold calls. Rehearse your discovery questions. Murder-board your presentations. Practice, practice, practice your sales story, messaging, and handling objections. Record yourself doing it and watch it back.

When you’ve practiced something until it is pure muscle memory, you don’t get nervous when it matters. You don’t freeze up or get embarrassed when you fumble. You execute with relaxed confidence.

Emotionally Detach from Individual Deals

The fastest way to lose certainty is to attach your identity to one opportunity.

Tenacious sellers want to win every deal, but they don’t need to win every deal to feel okay about themselves. They treat each opportunity like one at-bat in a long season.

Emotional detachment isn’t indifference. It’s a form of professionalism. It’s caring about the outcome without being controlled by it.

Install a Mental Script for Rejection

When you get rejected, it hurts, and your brain immediately tries to explain why. When you are in pain, it is super easy to default to stories that weaken your mindset and belief system. You say things to yourself like, “I’m not good at this or this isn’t working.”

Tenacious sellers consciously replace that story with self-talk that maintains certainty. “Not now isn’t never.” “This is part of the math.” My inputs are correct, I executed my process, but this just wasn’t the right time for this buyer.”

This is how top salespeople think because they know that the greatest threat to tenacity isn’t the rejection, it’s the meaning you assign to the rejection.

Grinding Without Certainty is Just Another Form of Suffering

Sales will always be a grind. The calls don’t make themselves. The pipeline doesn’t fill itself. The deals don’t close themselves.

But grinding without certainty is just another form of suffering. It’s unsustainable. Eventually, you get frustrated, burn out, and give up.

Certainty doesn’t eliminate the hard work, but it does make the hard work sustainable.

So if you’re grinding right now and not seeing the results you want, don’t just grind harder. Build certainty.

Get clear on the value you deliver. Trust your process. Know your numbers. Track the inputs. Practice your craft. 

Because tenacity isn’t about being tougher than everyone else. It’s about being certain enough to keep going when everyone else quits.

And remember, when you are tired, worn down, and feel like you can’t take another objection, when all you want to do is quit and go home, always stop and make one more call. Because that one more call is the ultimate demonstration of your trust in the process.

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