I don't like it. This looks like one of those inconsiderate changes out of the blue, that will have to be adjusted a couple of times and never work properly.
You semi-fix one problem and create a handful of new ones, that's not how it should be. NTs can be sabotaged, promoted teams are under high pressure to buy players as soon as possible, or they might fall behind in GS, replacing an injured player becomes somewhat useless...
No change would have been better than this, you want to fix the cup and at the same time you changed the whole game. How unnecessary is that?
Größter Knecht aller Zeiten aka His Excellency aka President for Life aka Field Marshal Al Hadji aka Lord of All the Beasts of the Earth and Fishes of the Seas aka aka Conqueror of the Buzzerbeater Empire in Europe in General and Austria in Particular