from Theresa Tedesco of the National Post,

According to insiders, Mr. Bettman and William Daly, the NHL’s deputy commissioner, told Mr. Balsillie that if he wanted to buy the Predators, he had to make a “good faith” attempt to keep the team in Nashville, and not to sabotage its chances of surviving in that city.
Apparently, Mr. Balsillie was troubled about not having certainty about his ability to move the team, and was clearly uneasy about his previous experience with the league. Before he publicly announced his bid for the Penguins last October, he had a similar conversation about moving Sidney Crosby and the team if the arena funding didn’t materialize. Apparently, Mr. Bettman agreed at the time, saying “I’ll be the first to help you pack your bags.”

more… long but interesting read…