Got it! I will work something up soon.Supposedly it's the eight wolves that makes them overpowered and an annoyance to some due to all the dice rolls. Even if you use mob rules, eight attacks against an AC 14 creature will statistically hit for about 25 to 30 HP per round. No other beast comes close to that under CR 2.
So four CR 1/2 creatures that weren't underpowered compared to the wolves might be a good compromise for DMs and players.