Don't forget Steven Fletcher from Wolves... (he is like the free-scoring goal machine for Scotland) does great and stats improve drastically after 1st season.
and its better to call up Cairney (before he gets capped for England), Leigh Griffiths, Saunders and JOHN FLECK (nobody mentioned his name I noticed), James Forrest, Goodwillie and Charlie Adam . If you're looking for a set-piece specialist call-up Charlie Mulgrew, he is a decent player (Championship/lower premier league level) but scores awesome freekicks and direct from corners.. He has 30 assists in my Celtic save 1st season 24 of which came from corner headers and 16 goals just from free-kicks..