None of Pedroia's performance history and WAR mean much if his knee is junk.
He has been a bargain but if he can not play the field anywhere near as well as he has and his bat is diminished he is useless.
Expecting 90-110 games from him now seems optimistic if his knee is that f***ed up.
And what of Nunez's knee? Those advocating him as a must sign to fill the likely gap Pedroia will create keep ignoring that his knee may prevent him from doing so.