I think Richardson could be added to the Redshirt group, but not likely. He really needed it last year.
Brown is probably the most prepared and game ready.
Wheelwright is probably the most talented, quickest, and has the most potential.
Fields needs to add the most weight & muscle.
Based off of the teams needs, and the fact that Fields has grown a couple of inches since signing he may very well be playing. Looking at his frame last year it would have been easy to say a definate Redshirt, but we need another Wing behind Bull without a doubt.