Sure.
Actually, I'm going to cheat a bit and use the Competition Bureau's 2015 submission to the OECD.
The first one was the change of foreign ownership, which has been done. The second one was “Lack of feed traffic at both ends of their routes”. The third one was “Lack of an effective frequent flyer program”, which no one has spoken about so far. Then there's “Lack of business class airport lounges”; “Lack of an established brand”; “Costs of leasing or purchasing aircraft”, which is a huge one we did address; “Costs of hiring flight crew”; “Obtaining access to airport facilities”, especially gates and lots of other hardware; “Costs of committing to a schedule in order to establish a reputation for reliability”; “Advertising, travel agent familiarization costs”, etc.; “Regulatory requirements...under the Transportation Act”; and “Scarcity of attractive time slots at key airports”. That one we tried to address as well.
That's the Competition Bureau's list. We say that, but I'd like to see what they would find if they did a new market study.