I have started using Rigid/Control or Attack recently, and am able to play beautiful football. Rigid philosophy isn't a negative in FM (A fact i recently learned). I use it if I am using specific roles throughout a team, E.G DLP, AP, Treq, BPD etc. There is better explanation as to why this should be the way over at SI Forums.
On the flip side, if i play fluid or very fluid, I use more generic roles, e.g CM, DM, CD because with fluid players are expected to do a bit of everything.