....the sheer size of the league will force my hand, rather than my own judgement. Also, if Shipp were my #1, what real value would my #3 have?
I am not entirely sure that you are absolutely forced to grab the entire RB-BC package. Say that you acquire Marcel Shipp and later on in the draft you have the choice between certain players: Emmitt Smith; Tony Fischer; and Onterio Smith. Wouldn't Onterio Smith be a more attractive pick considering E. Smith and M. Bennett seem to be injury prone?
I guess what I am trying to illustrate, is that an owner has choices to make about scarcity. Here is a hypothetical situation: An owner can decide that he will go after quality WRs since he expects a run on RBs to happen right away in the draft. Because the league is so large, this owner might not get a starting RB. Does this mean that his season is sunk? No, it doesn't matter if his 1RB position is weak if he built up strength in his 4WR positons? He may actually find himself at an advantage, because some owners will pass up a quality WR for a medicore RB.