Why Megatron Keeps Starscream Around

In spite of Starscream’s treachery, Megatron never seems to make the logical choice and off him. So the question arises, why does Megatron keep Starscream around? Support me at my Patreon! ▶ Subscribe for more awesome animations! ▶ For updates and sneak peeks, be sure to join the Discord server. ▶ Special thanks to our VAs: Nindrago Storm TheLastPrime