Being the GM of the Toronto Maple Leafs is obviously a strenuous task and doing so has certainly taken a toll on Dubas.
Revealing that he will not be the GM of any other team in the foreseeable future is huge news for Toronto fans because it shows that he is all in on winning with the Leafs and if he fails to do so, he will remain unemployed for a bit.
With Dubas dropping this bombshell, it shows that he will not be going to any other franchise such as the Calgary Flames or Pittsburgh Penguins. It also reveals that Dubas will not take his job less seriously and will give his 100% the entire time.