Why would you not play the best out of an average group?
You eliminated a word from the sentence to fit your argument. "default". Meaning the whole group is average and Manny isn't going to just play you because you are the best of them but are average yourself. He is going to find someone better through grad transfers. Which I agree with.
Manny knows that QB room better then any of us because hes practiced against them every day and for him to say that means hes not impressed by Jarren either but everyone assumes he is the potential savior because he just has to be better then Perry.