Paste your ESPN league link to grade every manager's lineup decisions: points left on the bench each week, wins lost to bad start/sit calls, perfect lineups and the season's biggest blunders. It compares the lineup each team actually started to the best lineup it could have set.
For every team and week, League Lens finds the best lineup that team could have started from its own roster and compares it to the points it actually scored.
A week where your best possible lineup would have beaten your opponent but the lineup you started didn't.
Private leagues work too. If you aren't the commissioner, League Lens gives you a one-tap message to send them asking to turn on 'Make League Viewable to Public' (League, Settings, Basic Settings). On a computer you can also connect your own ESPN login instead.