My biggest problem with it was the use of quotes instead of italics to indicate internal thought. Once I had that figured out, it wasn't bad, until I got to this:
I'm still not sure if that final quote was meant to be verbalized or an internal thought; the following paragraph seems to point to the latter."Wow," thought Vincent. "We've been using aggression as the 'Mr. Fix-it' for probably a million years and it sounds like these people, except for the few who've studied us a bit, aren't familiar with the concept of violence." He found himself rubbing his hands together and chortling. "If the wrong person, or in this case, me, the right person, could get control of things, he'd have it made."
The poor aliens should have done a bit more research before choosing someone to help them out, but at least Vincent is with them now instead of with us.