Lotito once described Reja as his Alex Ferguson, and it's well documented that when Reja decided to quit that he tried to get him to stay and that when Reja came back the second time, Lotito tried to get him to stick around longer.
Inzaghi has been working at Lazio for almost 20 years and for almost 13 years under Lotito. Lotito kept him around as a player for six years even though Inzaghi, by his own admission, wasn't really capable of doing anything for us on the pitch. Lotito immediately got him into the youth team, promoted him to Primavera, made him Lazio manager, and wasn't prepared to let Inzaghi go even when we were looking for a more experienced manager.
It's clear both those managers were valued by Lotito because he couldn't let go of them. But everyone else, he let go of quite easily.