He had some epic nuffies at the Warriors that he did a good job with, and there were other players who hugely improved into very good players. Luck came to the Warriors as a fringe first grade bench player, Lillyman was going nowhere fast, even blokes like George Gatis played career best football under him. Before being injured, there's no doubt in my mind Wade McKinnon played his best football under him, and frankly, any coach who can take a mob to the finals with Grant Rovelli at halfback is going well. Before the Warriors were willing to really invest in the junior development pathways, Ivan had to take in some muts from Australia who were average journeyman to make ends meet, and in most cases they did a good job under him. Some of those blokes who couldn't consistently crack first grade elsewhere have become highly touted players, a great example is James Maloney.
He also is a guy who generally makes good judgments on blokes. Vatuvei's an example. He was hounded after that Parramatta match. Ivan kept the faith in him and had confidence in him. I think its fair to say Manu repaid him in spades. He also had the nuts to say Steve Price's time had passed as captain and installed Simon Mannering as captain, knowing the future of the squad was going to be young, including Mannering, and he needed time to develop.
Outstanding coach and exactly what Penrith need, and need to stick by for 5 years.