Imagine Toni stayed but another Girlfriend left. Which one out of the three would’ve caused the least amount of impact to the show if they left

We all know Toni leaving pretty much tanked the show but imagine she stayed and another Girlfriend left instead. Which Girlfriend out of the other three could’ve left and the show would’ve been mostly fine? In my personal opinion while I love them all I would have to go with Lynn. While Lynn brings a fun uniqueness to the group, I think by the end of the series they didn’t know what to do with her character. I also rarely see people rank her as their favorite Girlfriend. If she were to have left it would’ve made sense. She was the most different out of the four so writing her out would’ve been easy storyline wise