Phillies don't have too many great performances this winter from their better prospects. The best so far is probably Gamboa in Arizona. 8-29 with 9 BB and 2 SB. 781 OPS. Hall has a couple of HR but is below the Mendoza line along with Listi. A couple of relievers (McGarry and Leftwich) still have a 0.00 ERA.
Grullon is the best hitting prospect playing elsewhere but is struggling in the Domincan (0-16).
In November Dylan Cozens and Bailey Falter are going to Puerto Rico. Nick Fanti is heading to Australia (along with the kids we signed for GCL from there or NZ the past couple of years). No list on Colombia yet though we usually send several A-ball types there (and Alfaro did play there a bit last year).
On Alfaro - sounds like he will be persuaded to make a brief appearance though could be mainly DH.