I don't think Morris can lead Miami to a BCS bowl. Williams probably can't either.
If Morris can't beat out Williams it's more an indictment of Morris than any indicator of Williams' abilities.
Dewey should RS. Coming off injuries, don't even both putting him in. Let him sit and learn. Let Crow go in and take some licks, if either of them plays 2012 will probably be a disaster anyway.
However, I do think the offense that Fisch ran in '11 wasn't anything Morris couldn't handle. Harris didn't make crazy throws all year year, Morris can make the throws necessary for the offense to function. Tempo was a huge problem last year, Miami needs to pick up the pace and run more plays. Whichever QB can do that best, can probably throw 20-22 TDs this year.