The initial idea for this roster was running off the back of Secret Empire, but actually I've grown really fond of the team and the concept in general.
Captain America
Thor
The Vision
Scarlet Witch
Ant Man
Hyperion
Ares (Joins officially after the first two arcs)
The express intention of this team is to atone for the crimes of their pasts, and everyone on the roster has at one point or another let the people down with their decisions. Hyperion's failure to save his Earth, and his execution of Namor. Scarlet Witch and M-Day, Ares' complicity in Dark Reign, Thor's reluctance to be see himself as worthy when the world needed him most etc, etc.
Obviously the team would have a lot of issues right off the bat, in particular it won't be plain sailing for Steve getting the trust back of Wanda and Vision but it's something they have to work through as a team because the world needs them. The first arc would kick off by Scott Lang visiting Steve and prompting him that if he wants to atone for the sins of 'Captain America' then he can start by rescuing Hank Pym, a founding Avenger who they've let down by abandoning him to Ultron.
Arc #2 would be Ares visiting Cap and them hunting down Gorgon and other remnants together
Later arcs would include Superior Octopus and his Sinister Six, The Squadron Supreme, and then finally return of the Sentry (Well depending on what happens in Dr. Strange)