Perfect team for Celtic with that money, (my team with celtic when i got took over :P)
GK - Artur Boruc and Craig Gordon
DR - Thomas Scobbie and Mark Wilson
DC - Gary Caldwell, Curtis Davis and Stephen McManus
DL - Leighton Baines and Gareth Bale
DMC - Lassana Diarra
MR - Scott Brown and Shunsuke Nakamura
MC - Teddy Bjarnsonn, Ashley Young and Giles Barnes
ML - Aiden McGeady and Ricardo Montolivo
AMC - Gio Dos Santos and Steven Naismith
FC - Bojan, John Sutton, G. Pazzini and Kjartan Henry Finbogason
Tactics
----------GK----------
---DR-----DC-----DL--
----------DMC--------
---MR--MC-MC--ML---
---------------AMC---
----FC----------------
With MR and ML and AMC making forward runs =]
You will not get this team right away though, after a few seasons, that was my team in about 2016/17. Keep at it mate, Good Luck!
C'MON THE CELTIC!
Don't just buy these players though, my reserves is filled with young players =] | 
