Earlier quoted context omitted.
The problem with wet leasing is that it doesn't scale. Try operating an airline with 300 planes under wet-lease and still make a profit.
Why does it have to scale? Maybe it's not meant to scale. Not EVERYTHING IN THE WORLD HAS TO SCALE.
Major commercial air travel is a commodity business. Where opportunity lies is perhaps in offering air travel solutions that bypass the hassle of airports. Shuttles between SF, LA or Houston and Dallas for example. These are heavily trafficked routes with mostly business travelers who would love to avoid long security lines and drive right up to a plane at a small airport.