Is James Reimer ready?
All eyes are going to be on Reimer as he attempts to bounce back from a sophomore season that was ruined by a concussion. Can Reimer become the netminder who posted a .921 save percentage as a rookie, or was that a mirage? And if he struggles in camp and early on, does that mean general manager Dave Nonis is under even more pressure to deal for Roberto Luongo?
What to do with Nazem Kadri?
The seventh overall pick from 2009 remains firmly on the bubble given the Leafs have 15 or 16 NHL-calibre forwards. Kadri, 22, has 26 points in 27 games in the minors but hasn't earned a spot among the Leafs' top six. Can he play lower in the lineup? Or will he be sent back to the Marlies?
Who plays centre?
Coach Randy Carlyle has plenty of choices here. The Leafs may lack a true No. 1 centre, but they have seven players who naturally play down the middle after adding Jay McClement in the off-season and will be trying them on different lines all week.
How do they make do without Jake Gardiner?
The young blueliner was a revelation all last season as a rookie but is out with a nagging concussion that has him on the sidelines to start camp. On a defence that has plenty of question marks even with Gardiner healthy, how can they make up for his absence?
What to do with Morgan Rielly?
One answer to the Gardiner problem may be in simply keeping their top pick from 2012, although allowing Rielly to play more than five games in the NHL will burn a year from his entry-level contract. Rielly doesn't even turn 19 for another two months but will get a long look at least in the early going to see how ready he really is.