I think Gerrard has an awful lot to do to make himself worthy of the Liverpool job, given where Klopp has taken them.
I know it'd be a sentimental appointment but unless he really proves himself at PL level, he could take Liverpool back a long way.
I wouldn't want to be the manager that follows Klopp. On a hiding to nothing.
EDIT : Didn't see that kisearch said the same just before me.