FWIW, Painter got a raise last year (after already winning Big 10 coach of the year twice... won his third this year). He is STILL the 8th highest paid coach in the Big 10, and their AD is notoriously cheap. MU is apparently prepared to offer a contract that would increase his pay by $1million, and would also pay his assistants significantly more.
Purdue is also putting $100 million into their basketball facilities right now. Even after that's completed, they will be well below what Mizzou already has.
There's also speculation that Painter's interest in Mizzou had been expressed to Mizzou BEFORE Anderson left, which would be odd if he was just trying to leverage us into a better situation at Purdue.