Is String Bean Ryouzan's coach or Oshiba?
Oshiba.
Anyway, re: this chapter, I figured he'd react this way, honestly. "If you're a forward, score 100 goals! If you're a defender, clear 100 balls! It's not like you're cutting me for some new defender--you're asking this of me because you understand my greatness and versatility, right?" I can literally imagine him saying all of that. The author is good at writing arrogant characters like this.