Well senior......it appears Mo despite being the best we have (arguably) he feels better being the lesser spinner as in he is likely to play better and sees himself as a top 5(not in my book) batter who bowls a bit. A batsman who bowls so to speak.
So another spinner is in but there's no way he can be expected to be the No 1 having played just a couple of tests and may or may not be good enough in the long run....
They say cricket is in the mind, some things don't change!!
I'm a bit confused myself(don't take much).... For what it's worth I think Mo is a very good player, about number 7 and decent spinner...
His record is up there wickets wise and runs. but he can't play he short quick stuff and that means he won't make the top 5
Perhaps I've confused myself