Bielsa has been playing yeboah at right back nobody noticed

I think there may be some confusion here!

Marcelo Bielsa is a renowned football manager, and I'm not aware of him playing anyone named Yeboah at right back. In fact, I'm not even sure who Yeboah is!

Bielsa has managed several teams, including Leeds United, Marseille, and Chile's national team, among others. While he's known for his innovative tactics and ability to get the best out of his players, I'm not aware of him playing Yeboah at right back or any other position.

If you could provide more context or information about Yeboah, I'd be happy to help clarify things!