I feel like we go through this every season, it's perfectly ok for the audience/a few episodes to be better "mike" episodes then Jimmy anyways. That is what made Breaking bad so freaking fantastic, Walt was the "main" character, but Jesse, Skyler, Gus, Mike, Hank all had various arcs where they freaking OWNED it. Eventually Gus+Mike+Jimmy will all start working together anyways, it's masterful story telling, just enjoy the ride for now