There will undoubtedly players pushed out at championship clubs who were good enough to play in the championship last year and may have developed into better players this year. Now some Championship clubs will be favouring fringe SL players either through wide-eyed optimism or because the fringe players from SL are higher up the pecking order a la Rochdale.
Only the ones that are no longer good enough for the Championship. I'm okay with that.
Players will always find their natural level at some point.
Championship clubs have such a low salary cap that they can't afford extra players outside of the matchday 17 or squad of 25 or so who are players that they'd like to develop during the coming season.
Players want to play each week and not spend a few weeks on the sidleines when the fringe SL players are in favour. They won't want to be seen as a fill-in when the SL player is recalled or injured. The SL fringe player will still be benefitting from full time training, facilities and coaching ahead of the squad player, so its absolutely logical that the SL player is favoured. If the squad players are on match payments only, then even if they are good enough but not getting enough games to bring money in for their families, then they will just step down a few levels, go back to their trade and probably not realise their potential.
This step is short term and has huge impiications for the overall talent pool and that is why it is large threat to the sport