Source?Sorry but i know the situatuon well. Mike ask to leave Memphis ( he didn't want to make only noise,, his word...), and if he had decide to stay, he will still be there. But yes, after JA turn to be that good, i'm pretty sure Memphis are now happy with the deal.
All the media reports at the time (multiple sources including Marc Stein and Brian Windhorst) stated Mike did not want to get traded to the Jazz and wanted to stay in Memphis.