Not a good move to burn the year if that is their plan. He's not ready for that. He's still making far too many mistakes in the AHL, and they are the same mistakes that are plaguing the Leafs right now.
If you want to give him the last three games of this week to see what he has got, then go ahead, but he should not see 10 games this year. Liljegren should be the one getting exposed to the NHL right now, because he's going to be in the NHL 100% next year. There should still be doubts about Sandin making it.