With Fox refusing to commit to resigning with the kings and this season off to a rocky start the kings may pivot to getting something for him before he can leave for nothing. Replacing him with fred still gives them a chance to compete for a playoff spot this year while also getting several future assets, and $40 mil cap relief if they decide not to re sign fred. For Houston Fox immediately gives them a much needed go to scorer especially at the end of games and the fast breaks with the other young athletes would be insane. Plus he is from Houston, should help in resigning him long term.