It's not impossible, like 1908 pointed out the Comcast deal is in flux right now, but this is most likely just Brett being a ninny.
The team has, if payroll is flat, $55M to add a SP or two, completely remake the bench, and fix the bullpen. You start doing the math and it's tight. Of course you're going to e.g. avoid giving Corbin Burnes $30M, of course you're going to explore trades to address certain needs cheaply, etc.