Thoughts:
Unlike most sales reps, founders can credibly promise tight feedback loops for product.
"If you go with BigCo, you can call them at 3 AM. Someone will listen to you politely, explain they have no solution, and open a ticket. If you call at 3 PM, same answer."
Many, many technical founders of my acquaintance want to offload this to someone ASAP. I've never seen this work: you need to have a deep understanding of your market and customers to arm that first non-founder salesperson. It is gained by doing.
These folks are capable of writing their own ticket and then, by construction, getting folks to buy it.
Sophisticated, mature processes for marketing to pass leads over to sales for qualification.
Steli is so effective at sales he has closed deals he wasn't even a party to. My favorite anecdote about this:
"Hey apropos of nothing: do you know Steli?"
"Oh yeah he's great."
"He is. Steli wouldn't let me leave lunch...
"He wouldn't, would he."
"He wouldn't."
"OK then; we will."
"Great! Email me and we'll figure out logistics."