Interesting.
So the Allams were not as attentive as they should have been when giving contracts to new players.
Those players were paid from monies received from the old Sky deal. Both transfer fees and wages. The new deal, that is, City receive about the same amount as the champions got the year before, may have inflated the fees that ended up in the coffers.
Players bought under the new deal would want a higher wage, the long standing players would then ask for the same. Not so sure they were inatentive, more being careful with money.