The hubris of English ex-pros to not serve any decent apprenticeship, and to go into "big" jobs ASAP.
I think this will be a bad move for him if he takes it. There was nothing wrong with sitting at Liverpool, learning the trade with the kids, learning how to ACTUALLY coach that way, and then being in a good position to move up to the first team staff, and then eventually the manager's seat, where he'd have experience, knowledge, and real coaching ability to do the job.
Instead, if this is true, he gets impatient, and wants to strike out on his own and be "the man".
And with a bloated, mutinous and largely untalented squad, in a league dominated by one club that has two season's worth of Champions League money to play with.
If he does the job and wins the SPFL, he'll be a legend. But the odds are that Celtic will carry on, as will Aberdeen, and Hibs are getting stronger, so if he fails in a 3-way battle for 2nd place, he'll never lose the stain of it - just like Neville is now stained with his Valencia failure.
He should reconsider, and stay at Liverpool and learn the trade properly. Otherwise, he's on a hiding to nothing.