Pettis was a very good punt returner.
I tend to like back-up RBs on KRs (unless they have Ross like speed). Dotson is a blazer and Chico is fast too (listed at 180 lbs so not super small).
It would be cool to see D. Washington do a kickoff return because he'd have plenty of time to accelerate / get to top speed and he is a load at 6'2" 221 lbs.
You've got to be fucking kidding with me the DWawrsh shit. That dude is the exact opposite of what you want. If everything is perfectly blocked and he has a huge hole, he's amazing. On kick returns, the whole thing is about setting up defenders to miss with subtle shifts. He would run into the backs of the up-men at the 18-26 yd line on 95% of KO's.
Buttah on the other hand... I'm looking forward to that.