Answer:
Varga had a great potential.
Explanation:
The readers can conclude that Varga had a great potential for becoming a good pitcher. Thoughout the interaction between the pitching coach and Varga, the emphasis is put on Varga's capability to become a good pitcher.
It can also be understood from the conversation that coach Dave suggests Varga to throw six pitches first so that he could atleast get three outs and save 14 pitches for the rest of the game.