As for NF Lennon getting offered the job at Celtic; it was on cards and I guess Rangers fans will be happier with him than a Benitez type, but he is an experienced man and knows club so should be fine. Might not have the charismatic draw to new signings that Gerrard has but I think Celtic want to try and get 10 so are going safety first.
Whether it falls flat or not is irrelevant as a Benitez could have too, then everyone would be saying they should have gone with NFL. Catch22.

I will say this, the pressure on all involved will only increase, so it may be more difficult than many supporters think.... I wont say good luck tho