So, let me see if I am interpreting what you wrote correctly. We are accustomed to a 53 man active roster and a 10 man Practice Squad = 63 players total. The 53 active player roster is then reduced by 7 to 46 on game day.
Under the new CBA, the game day roster roster grows to 48. The extra two players can come from either the Practice Squad or the 53 man active roster. Is that correct?
The Practice Squad grows by two players in 2020 and two more in 2021. That's a four player increase in the total roster spots from 63 to 67. So all the new jobs are on the Practice Squad and are governed by a set pay scale, and those players continue to be eligible for signing by other teams. A team can only elevate a Practice Squad player twice in a season before they sign him to the active roster and have to demote or cut a player.
Is the above correct?
So if a team wants to stash a veteran on their practice squad, it can activate that player to the 53 if he makes it through the week without being signed.
Let me try an example on for size. A few years ago the Patriots had all sorts of injuries in the backfield and signed retired RB Steven Jackson to the 53. He played okay and filled in in weeks 14-17 if I remember correctly. Under the new CBA, they could sign a guy like that to the Practice Squad, elevate him to the 53 twice, and not cost themselves a roster spot because he would be the 47th or 48th player on the game day roster. Is that right?