Why aren't the Titans suing Pola? He's the one who broke his contract.
Much harder to win. Much harder to collect.
Lawsuit will be in front of a Tenn jury. Who do Tennesseans hate more? Pola or Kiffin? Is a jury going to be more willing to force Pola or USC to hand over to the Titans a big wad of cash?
Also the 13th amendment of the US constitution makes it pretty hard to enforce employment contracts when an employee wants to quit. It does not stand in the way of suing someone for tortious interference with a contract.