the truth is that not all 'low-houred' pilots need watching 'like a hawk'! The failure comes from the poor selection process in some airlines. OK, you may have passed your ATPL groundschool without failing an exam, but that does not make you a good pilot.
I was low houred, but thanks to the confidence building of the training captains in my company, I was allowed to grow. Allowed to push myself to the limits. Worked for me.
Good luck to you though!