We use Cobb out of the backfield very well and why couldn't MM further adapt to a back of Bush's talent. That is what makes a coach great anyway and I consider MM a great offensive coach. He just never has had a back with Bush's talent. I personally take Bush over Jackson. There is about a 2 year difference also and the price would probably be similar. Bush has less wear and tear on his body and actually has been the better rusher statistically the last 2 years.