Not to speak on roids as we will never have a clear picture of how often and by whom they are used, but I am a big fan of bringing in athletic, lighter kids with decent frames and then adding size and strength.
Iowa does it, Michigan,Minnesota, Wisonsin, BC, Nebraska, USC etc. We have always subscribed to a 6'4 320 pound High Schooler that may or may not be able to play at that weight in college. Bishop and Clarke are perfect examples. Olivea wasn' t too big wneh he came in but was certainly too big when he went out.
Gallery at Iowa and Matt Light at Purdue are perfect examples of how this can be done. We need to emulate this as these schools have had a lot of success on the OL for many years. I think we are moving that way and I look forward to the change bearing many offensive fruits.