I did a stats comparison between Tabs and Hogan, and one thing that stood out for me was that Tabs averaged 8.1 kicks, and 4.1 clangers. He also gave away 2.4 free kicks a game - which puts him 8th in the league - while receiving only 1 in return. So for his average of 11.5 total disposals a game, he is literally gifting the other team 6.4 possessions - or every second possession.
I like Tabs, and his contested marking is much-needed, but that's extraordinary profligacy on his part, and I bet that stat isn't lost Lyon.
But yeah, Hogan would be an enormous upgrade, and we'd almost certainly need to cough up more than pick 5 and Balic to get him.