You're really worried after 3 games? There's a very good sample size, almost 2 full seasons, with Karaban to know what you're getting. Just like any player in sports there are ups and downs.
UNH and Kansas - 7/22 and 2/13
Next 2 games, UNC and APB - 17/29 and 8/18
Seton Hall and St. John's - 6/20 and 2/10
Next 4 games, DePaul, Butler, Xavier and GT - 27/41 and 16/24
Nova, Xavier, PC and Butler - 13/32 and 6/18
Next 2 games, Georgetown and DePaul - 16/24 and 9/16
He's in a 3 game slump right now so put some money on him busting out against Seton Hall. Unless there's some injury that we don't know about that is causing the slump. As Hurley said after one of his mini slumps, "Alex is Alex. He's far down on my list of concerns."