30 Years in the Field: Lessons No Sales Classroom Ever Taught

I've sat through thousands of meetings, lost hundreds of deals I should have won, and won a few I had no business winning. After 30 years across IT, telecom, education, and FMCG, there are a few lessons I never found in any sales training classroom — and those turned out to matter most for a long career.

1. A High Closing Rate Isn't a Sign of a Healthy Career

Early in my career, I believed closing rate was everything. I now know that's wrong — a high closing rate with the wrong clients, built on overpromising, just pushes the problem downstream to delivery and renewal. Some of the best deals of my career are the ones I turned down, because I knew we could never healthily meet the client's expectations.

2. Confidence Doesn't Come From a Script — It Comes From Clarity of Limits

Young salespeople often chase the perfect closing script. But lasting confidence comes from something far simpler: clarity about what you can and cannot promise. Clients, especially at the B2B and B2G level, are highly sensitive to salespeople who sound "too smooth" — that often triggers suspicion, not trust.

3. The Relationships That Last Are the Ones That Survived Rejection

Some of my best business relationships actually started with a rejection — I made an offer, the client said no, and I didn't disappear. I stayed present, stayed relevant, without pushing. Years later, they came back — not because I was smarter than the competition, but because I was the only one still there when they finally needed it.

4. Crisis Reveals Who Your Team Really Is

I led a team through the 1998 economic crisis and several market shocks after it. What I learned: normal-condition performance doesn't predict who holds up during a crisis. People who stay calm under pressure, who keep looking for solutions instead of someone to blame — that's the most valuable asset, and it rarely shows until things get genuinely hard.

5. Humility Is a Skill, Not Just a Trait

After decades, mentoring a younger generation of salespeople taught me that the humility to keep learning from people more junior than you — who understand new technology and consumer behavior better than you do — is a skill that has to be practiced, not something that comes automatically with experience. If anything, the longer the career, the greater the temptation to stop learning.

Closing Thought

Frameworks like the C.O.R.E Framework™ were born from watching these patterns repeat for decades — not from classroom theory, but from observing why some teams and individuals genuinely grow, while others stay trapped repeating the same mistake wearing a different face.