I don't consider the Patriots LB corp to be one of their strongest units. Spikes is excellent against the run and a liability in coverage, Fletcher is excellent in coverage and not as strong against the run, Hightower is starting to establish himself but seems a little slow and then you have your All Pro level LB on IR. No, I'm fine with the Collins pick. What is a little concerning is the lack of playtime/development from Collins but as mentioned, I give all rookies their rookie contract to establish themselves.
If you can fill every need a team has in one off season, you're a super GM IMO.
I'm surprised you don't consider the LB corps as highly as I do. Going into the draft, how would you have ranked the groups? Mine was something like:
Top Level: QB, TE, RB - Generally the strongest points of our team, young across the board except for Brady, who until a year or two before he's finished playing, eliminates the need to draft another QB.
Solid: LB, DT - I was perfectly fine with the combo of Hightower, Mayo, and Spikes. Would agree it could use some depth, but all are in the first half of their careers (hopefully) which is a big plus. Hard to complain with big Vince in there. I want to say I definitely wouldn't have minded some depth and to begin looking towards the future, but honestly I think that might be some hindsight bias.
Average: CB, DE - We thought we had the beginnings of a decent secondary with Talib and Dennard. It has been solidified at this point, but back then I don't recall being so sure. We definitely wanted more depth. DE was similar, we were banking big on Chandler Jones breaking out (and thus far has done well this season), and Ninko's a playmaker, but two top tier pass rushers are better than one.
Need: S, WR - I had confidence in McCourty. Gregory was playing nowhere near as well as he has this year, and our backup situation was pretty scary. Definitely one of my top concerns going into the draft. I was initially going to put WR at abysmal, but again that's revisionist as we did have a number of vets signed at the time who all fizzled. Still, our sure things were Amendola and Edelman. By far our biggest hole going into the draft IMO.
To be fair to Bill, if I recall correctly the next two (or two of three) picks included a WR (Dobson) and S (Harmon). And don't get me wrong, I'm not unhappy Collins is a Patriot. I just don't agree with the idea of reaching for a guy you could probably get later at a position that, at least IMO, was at best 4th on my list of needs.
It's also easier to say he was worth it, I think, in light of the fact that thus far this may be one of Bill's better drafts. If Dobson and Harmon were busts, I think it would be easier to criticize the pick.