"You'll do fine," Optimus assures him, placing a hand on that shoulder plating. He knew Drift--maybe even before Drift realized it, when he took him to the dead end clinic. He knew he was a lost soul then, and that he'd found something now.

He sees the way Rodimus talks about him, and he sees the way Drift looks when he's given this responsibility.

He doesn't need the wisdom of the Matrix to tell him that things are in good hands. In fact, he couldn't find any more stable ones to put Rodimus in now.

"That's all."