The only ones really taken in by Rafa to Celtic were the Scum and the Mirror. Probably be Paul Lambert seeing as he's out defending Lennon.
No more relevant that how good Martin O'Neil is. Rodgers is of course better. He's probably in top 10 managers in the world at present but he is just another past Celtic manager. He has no relevance in who you bring in next. The only relevance is who it will be and if they will be better than Lennon.