Sounds right to me.
Either way he's showing out well, albeit for a side who are genuinely making easy work of the league at the moment. But that's why I brought up the incident with Matt "Chelsea bought me once, honest" Miazga; Yerson is clearly confident in his knowledge of the game and [FCC manager] Pat Noonan's tactics. He's constantly communicating with Miazga (playing the central CB role), Álvaro Barreal (LWB), and Marco Angulo (left side #6 role), directing them with and without the ball, making sure the spaces are kept reasonably tight. It's all really, really encouraging stuff, IMO.
Taken with an MLS-sized grain of salt, of course.