It's basically Howie's signature move.
If you think about the importance of drafting mid-late round guys it's basically to have cheap depth. Howie instead uses those picks in trades and offsets the impact by rolling in cheap vet depth. There's the risk that it won't really work like with Ngata, but it worked with Long and Robinson etc. It's at least comforting to know that he has a system for a addressing the lack of depth picks. Just need to continuously hit in the first 3 rounds to find the bulk of your starters.
Yep. They have a clear plan of attack as to where they need bodies versus starters and approach them completely differently. It's one of the reasons I was so surprised they screwed up with their Safety depth last year, but that was probably a misevaluation of Corey Graham more than systemic failure. They don't draft positions to have bodies anymore, which was a huge step in the right direction.
When you take that approach, it does tend to lead you down safer early paths once you get outside of the top 7-10 players, which is not my favored approach until the mid 20s or so, but I do understand it.
It's become a big talking point as to which positions are worth paying, but the real meat of the issue here to me is which units are better evaluated by the worth of their best players versus their worst? Offensive Line and the Secondary are the clearest cases of worst mattering most, two areas where they've relentlessly built systemic depth in the last 2 years. They're on top of these trends.