Castro can play middle field well which means he can anywhere in the OF & INF well. He isn't just a utility player, he's a super utility player, LAD knew the importance of having super utility player Chris Taylor for years & he proved to be very valuable. One shouldn't take a super utility player for granted but many do. A super utility player adds depth everywhere & IMO Castro will grow into even more of an impact player.
I'd like to keep Castro around for a while. Lee is set at 2B, LF is still up in the air, RF will be up in the air after Kepler leaves, Martin is our other super utility player & Julien, Miranda & Kiriloff will fight it out at 1B. Hope is Wallner will find his way & then there is Larnach & when will Emma be ready? It wouldn't be a bad idea to extend switch-hitting Castro as insurance & keep our options open, He wouldn't be expensive & his trade value would be appealing if he gets pushed out.