You can still omit a player and play him the next week.Think the difference is a managed player will be an automatic inclusion the following week as opposed to no guarantee for a return of an ommited player.
It’s essentially being rested and imho is the best possible usage of the ridiculous sub rule. Rest your players as the medi sub. Break glass in case of emergency.
Those wanting Sonsie or Martyn or some other young player to be the medi sub are basically robbing them of another development game in the VFL and consigning them to watching a game from the bench. Unless there’s an injury of course.
Hardly being rested or managed if he is required to play early in the game. If he is truly being rested then don’t play him at all.