[hogua]

In order to make a decent living at sports betting, your friend will need a few things:

1) Ability to consistantly beat the books on at least one sport (more is better).

2) He'll need a large enough bankroll to allow him to have bet sizes large enough that a ROI of 2-3% on will return enough to support him in the lifestyle he'd want.

3) He'll need a lot of discipline - in what he beats, in dealing with losses (and wins), in bank roll management, in bet size management, etc.


There's more, of course. I'm sure others will add..