I know lillee struggled in Pakistan. Enough to write him off.
Cummins struggled a little in India but not as bad as Lille did in Pakistan.
Cummins is playing alongside goat Smith though.
Lille had not much help.
I still believe Cummins is the more complete bowler easily.
I actually believe that McGrath > Lillee, but you can't say you are 100% sure when you never saw him play