MESA, Ariz. — When rookie pitchers Caleb Kilian, Javier Assad and Hayden Wesneski made their debuts last year, the Cubs didn’t know exactly how each of them would handle the jump. Now, they’re part of the team’s improved starting depth.
Assad and Wesneski are competing for the fifth-starter spot. And Kilian, who held the Reds to one run through three innings Wednesday, is expected to serve as an option to be called up from Triple-A.
