We've lost a lot of carefully-placed bets, but the issue is more with whiffing on the players they brought in than it is with the approach. At LB, apart from the two best backers being down to injury, you've got the whiff on Smith. At S, they thought they had two guys they'd developed in that position group. Heath to take the defensive snaps, and Frasier to back-fill on STs and fill in on defense. That's more a whiff on evaluating who they had than it is a failure to bring in a player like Hyde. I really do think they thought Heath would take the next step, and he's regressed.
At CB, as we've covered, they brought in a bridge player with the goal to backfill the position group with rookies. It's actually the least of the problems since it looks like Awuzie, Lewis, and Woods can actually all play. This is why I don't think the whiff on Carroll is all that significant.
DT, one tech, though, is another matter. We let McClain walk and cut Thornton. Now we've got Price there as a run stopper and a bunch of guys who are better fit as pass rushers. That was a significant miscalculation.
I don't disagree that we need to be looking to make more impact signings in FA. I'd rather not go crazy with it, but signings like Thornton, or someone like Hyde make sense. I'd still prefer we keep our own and offer larger deals to Church or McClain in those situations, since we already know they fit the system, but you're right that you have to use all the avenues available. I do think we'll do more of that for a year or two now that we're getting out from under Tony's contract. We're still not going to go crazy with it, though.