Doyle is 26, a bit old to be "promising". He is better than the likes of Paolucci though.
I like St. Ledger but he'll never be good enough for this level.
Seamus Coleman is a very good player. Trap needs to get him in the team instead of McShane. If (when) Coleman really makes it at international and/or club level, the Sligo Rovers fans will all have one big shared orgasm though.