Just seeing Bayern's squad I think they'll be spending big this summer.
Robben turns 32 in January.
Ribery has turned 32.
Lahm's 32 in November.
Schweinsteiger is 31 in August.
I think letting Shaqiri go in the winter was a mistake. They have no pace beyond the 2 above now and both are injured.
Their squad is obviously good enough to win the Bundesliga easily but if they want to compete in the CL think they'll need to spend.
They can spend more 150-200m euros if they want and revamp the squad.