It isn't that difficult to know because VERY FEW backs are blessed with the abilities Williams possesses. I'll take it a step further. IF RONNIE is AS GOOD as Williams, then he wouldn't have been sharing snaps with Carnell at Auburn. OR if you were to put RW on that Auburn team with Ronnie and Carnell, then neither one of them would have seen the field very much. THAT IS FACT.
And here is my opinion: Ronnie Brown will probably struggle somewhat behind our line for several reasons:1) He has to adjust to the speed of the NFL in REAL LIVE GAME ACTION. 2) He is a PURE straight ahead power runner. In the NFL, with a questionable line, that will not equate into an impressive YPC. (See Eddie George - though not nearly as immobile as George) Ricky will be great for Ronnie and Ronnie will gain alot of knowledge from Ricky. But (and here is the big one) when Ricky gets back from his suspension, look for him to, within two or three games, take over most of the Tail Back work.