Well, it depends upon whether defense is seen as tangible. In terms of offensive production, Posey isn't irreplaceable. Bonzi Wells could replace Posey's scoring and rebounding easily enough, and he's not bad defensively, either. He's not quite as good shooting threes, but he's not terrible, either.
James Jones had similar production to Posey last year in terms of scoring and shooting.
Mickael Pietrus' tangible numbers aren't that far off. Matt Barnes is in the same ballpark.
No, I think with Posey you really do need to look at all the other things he brings (toughness, chemistry, leadership, clutchness) and try to put a price on that.
I think the biggest, most valuable and most difficult to replace intangible that Posey brings is his CLUNTCHNESS...
We can find good defenders not too bad shooting threes...
We can find tough players.
We can find people that could fit the chemistry of the team (pretty easy to fit in when a team has a good chemistry at his core)
We can find players with leadership
But what we can't get that easily out there is cluntchness!!!!
Players with cold blood that will overperform late in the 4th and are reliable to hit 3 point daggers, cluntch three throws, make a decisive stop, steal or dive to wrap up a game...
That is SUPER valuable...
And none of the name I'm hearing so far have this but Posey !
I actually see Pietrus better suited for us than Maguette for his defense, 3-point %, and explosiness to the basket... but none of Pietrus, Maguette, or whoever you can find available as a free agent this year have Posey's CLUNTCHNESS !!!
That's where is value is to me...
Please do whatever is possible to bring back James Posey...