Some great points here especially the point of getting lured in by big names like facebook and google as a benchmark for great salespeople. You want to hire someone you know can build from nothing and not rely on reputation alone.
What i will add however is those companies can be a great educational ground point early on in ones career to develop good habits and processes.
What i will add however is those companies can be a great educational ground point early on in ones career to develop good habits and processes.