I can't speak for Martin, but watching the Skins every week here in DC, Morris is greatly benefitted by a better QB, line, and play calling - all of which result in much more room to run than Trent in Cleveland. Trent is absolutely better than Morris, no question about it.
I was reading a little about Morris and I saw he had fumbling problems in college. He has 4 this year. That really doesn't say much because Trent has 3, but that has to factor into things as well. Also I guess he's pretty slow.. is that accurate?
Richardson is still a rookie, and a lot of his struggles seem to be in getting to the hole. It's debatable if the Oline isn't opening holes up for him or if he's taking too long to hit them, but he should show improvement next year. However, Richardson and Hardesty shape up to make a great tandem. Seeing how that backfield evolves over the next couple of seasons should be interesting.
Give him some better blockers and he'll be a top RB in the NFL easily.
Give him some better blockers and he'll be a top RB in the NFL easily.