Conversation so far:
What was Y. A. Tittle's playstyle?
Y. A. Tittle threw the ball from a sidearm, almost underhand position, something novel at those times.
Did Y. A. Tittle choose to throw the ball from a sidearm or did it come to him naturally?

Question: Was his play style effective at first or did he have to work at it?
Self-contained rewrite: Was Y. A. Tittle's playstyle effective at first or did he have to work at it?