Toronto should graduate to a more dynamic way of thinking about roster construction, anyway. Smith can be like generic Tampa Bay rays player #1245. If he keeps hitting he'll get his chance to carve out a bench role, then a platoon role if he keeps it up, then perhaps even what is more or less a starting position player role.
Most of those guys can co-exist on the same future roster. Players will always fail or get hurt, traded.
Prospects are precious flowers to cultivate and let blossom, but they are also just ammunition to use and deplete.