Mets Team UZR During The "Fangraphs Era"

what does this mean?

… Mets v. Phillies URZ for ’09 starters:

1b Howard 1.0, Delgado -3.5
2b Utley 20.3, Castillo -10.3
Ss Rollins 15.9, Reyes -.6
3b Feliz 10.1, Wright 3.6
RF Werth 33.8, Church 4.8
CF Victorino 10.2, Beltran 7.0
LF Ibanez -10.4, Murphy incomplete

I assume Murphy is going to be a better fielder than Ibanez, even tho he’s relatively new to the position. Otherwise, it’s advantage Phillies at every position. That was surprising to me.