If he was a FA last year you would have been making the same argument on why he wasn't worth 5m and that he would never be able to put up a playoffs like the one he just did. Look at whats in front of us, worst case scenario we need to spend at least 12m to be a floor team, there's no point in signing Zach long term and you want to blow all that 12m on Poni, Carter, Bernier Fayne and Hedberg + X and Y spare part? If we really are in that much trouble give Marty a 1y 5m or 2y 4m deal and be done with it. We keep his legacy intact, we have a starting goalie, helps us reach the floor and buys us a few years to get new owners or whatever it is we need to make us competitive again.
If it's not the worst scenario then just sign the guy for a little more then he is worth, god knows Lou has done that before with random FA's.
I never say never with goalies. They are totally unpredictable. I was surprised that he was able to overcome a rough first round - he played excellently for the rest of the playoffs.
If he were an FA last year, I would've made the same argument, and I would have been right. Brodeur's play in the first half nearly cost NJ a shot at the playoffs, he was horrendous in everything besides shootouts. I would much rather try to upgrade the forwards than sign Brodeur to a $5M deal, it's not worth the risk. I would also not assume that the floor will be what it is now - I'd much rather take that risk.