it appaears that you don't have enough faith in the coaching department to develop Ben into a wide running backrower but yet, you seem certain that Tony Williams would be a capable replacement despite the fact that he has zero first grade games next to his name..
The point is, Tony, who's a tremendous prospect imo, still isn't at first grade level and also has some deficiencies to his game just as Ben has, however the clear difference is Ben still has 60 odd fg games to his name and knows what it takes to step up to that level.
to me, I doubt very much that there's a choice between the 2 as you keep pointing out but if there is, the decision to keep one or the other isn't as clear cut as you make out, infact I would say it's more a choice between Weller and Ben...
at the end of the day and how I see it right now, the project to turn Tony into First grader is far greater than turning Ben into a backrower, despite the fact that if Tony gets to that level he'll probably kill it.