I'm not sure another coach could have improved on the W column, though in saying that there were at 3 winnable games that the Kings dropped (the loss at home to T'ville in particular as they were looking at >90% chance of winning that one, @Adelaide was another that was their game to lose, last game against Illawarra maybe the tougher one to pull out but definitely possible), those games are perhaps more on the players not executing, though there were certainly times where Cotter didn't seem proactive (or even reactive in some cases) just from my observations. He seems like a good guy though, but I want a coach that will maximise my players talents and he didn't really ever seem to be able to get that.
As I mentioned before, would have liked for management to ride out the season and maybe go after Geordie McLeod (there is a Razorbacks' connection there right?), someone who will at least maximise the talent, and has a proven track record on the league (one thing Connelly does not have, but his coaching ability remains a big question mark).