let other clubs experiment with young manages like AVB, Paul Lambert, Rogers, Klopp..
the best options are:
Capello: the best League manager in the world in the company of Fergi and Mourinho, proven with multiple clubs and in Serie A and La Liga, his record with England was 28w, 8d, 6d.
O'Neill: his teams play consistently with commitment no matter the opponent, can lead teams to long wining runs, he can fix the team with players already available, Carroll will thrive under him. can adjust tactics and style.