If he is so good at poker, why does he need to moonlight as a coach???

Face it, math problems are for high school kids and nerdy scientists. You are a working professional now, you can't be expected to devote minutes a day on trivial things like this.

Do you think doctors waste their time reading "medical journals" or lawyers waste their time studying "legal briefs"??? Hell no they don't, and as an equally astute professional you shouldn't waste your time...

Remember the poker proverb:
Give a man a hard and fast chart on how to play hold'em and he plays for a day.
Teach a man how to think about hold'em and......he grows bored because this is not a fast enough way to make money.

Anyway...fire his lame ass, kiss your wife, and get out there and build your bankroll.