"Significant" draft capital isn't a second or third round pick when it's being spent too acquire the inarguable best WR of the past 5 years. Again, I'm not defending what he did in skipping a game, but that's why he's so CHEAP! Yes, you can be concerned about his attitude, but, and I'll always come back to this, you can't tell me any combination of free agent moves this team could make that would close to the upside of acquiring Brown. You're worried about the oline? Not gonna see a lot of blitzes when the defense is trying to cover Adams AND Brown. You worried about the defense? Offense should be putting up enough points to compensate.
Is it guaranteed to work out? Nope, but if it does it's ONE move that immediately makes the Packers a Super Bowl contender next year. No other combination of moves will achieve that same goal. Rodgers is getting older, if the team wants to take advantage then they need to take some risks.
And this isn't even a big risk. If he's a problem there is ZERO cap hit to cutting or treatin him. You give up a second or third and he doesn't work? I GUARANTEE another team will be willing to trade a fourth a fifth to the Packers to get him. So the "downside" to getting Brown? You traded a second rounder and got a fifth rounder. The upside? Best offense in the NFL. That seems like a pretty easy choice.
PS. Pre-emptive apologies for any misspellings, longest post I've ever tried to write from my phone.