Suggested

Who is leaving the league?

I am a Elite player and host of my league. 

Sometimes players leave the game. But only if they are Elite I see a message who is leaving. If someone from Rookie or Pro leaves the league, I have to ask players from those tiers who left. 

Suggestion: the host should always get a message when someone leaves the league and who this person is

Agreed, this has always been a problem as you only get notified for your level.

I think this is a good idea as well.  Certain people will be because of inactivity, but those that are active and leave, would be interesting to know why and you could at least then message and ask them

Yes i think is useful for the host