In my experience, hustlers (the 'naughty' kind) are good for making everyone think you're making real progress while your company is actually going sideways. We

In my experience, hustlers (the 'naughty' kind) are good for making everyone think you're making real progress while your company is actually going sideways. We had a couple hustler-types who spent a lot of time blowing smoke simultaneously up engineering, BD and customer's asses. It was only after they were gone that we were able to disentangle an elaborate web of false expectations and outright lies and start making actual progress again. Particularly mischievous was the way that these guys often created constant panics for engineering due to the unrealistic promises that they'd made to customers - they would then regard this as 'good management' (look how hard we're making everyone work). Bonus points for the fact that these guys were working on their own startup "on their own time" (sort of).