Exactly why I think they look at RB (the part I cut out of your quote): To improve upon Craig Reynolds. Nice glue guy and not a bad backup... But I think part of Holmes/ Campbell's strategy is to ALWAYS look for a RB because they get beat up so much that a team better have a decent "next man up" candidate whenever the inevitable NFL injury occurs. And I think the team will at least add competition to CR's backup spot.
The part I left in my quoting of your above post: That's why I said they would need a trade down and extra picks before getting to RB, if they were to do so, as high as the 3rd round. IE: Trade down of 1st for a 2nd and 3rd = two 2nds and two 3rds.
I agree with your list: Edge is a need and there are a few interesting candidates in the top 3 rounds. Loaded WR draft = excellent candidates first 3 rounds, same with CB and IOL. Particularly IOL that can play both Center and OG, which also aligns nicely with the Lions needs.
I believe there are "Lions type of players" at all 4 of those spots, with huge amounts of talent/ domination/ "grit" skills to boot. But with the RB's virtually getting ignored... by the time we get to the 3rd round... NOW those top two RB's (Brooks and Benson) are going to have more talent than the 6th or 7th IOL, or CB, or WR, or Edge... so, if Holmes/ Campbell "LOVES" either of these guys, I think they get drafted ahead of another player that they love less just because the other spot is at a higher need. They've already proven that.
Otherwise... I think if they keep the three-only top-3 round picks that we currently have, that there are enough CB's/ WR's/ Edge/ IOL's that they "love" that they stick to that and use a later pick on RB. Only if they add another pick or two do in the top 3 rounds does a RB come into play.
Just my 2 cents.