How Cubs’ pitching staff will lean on Kyle Hendricks, Marcus Stroman

MESA, Ariz. — When Cubs right-hander Marcus Stroman was on the mound Sunday, left-hander Justin Steele was watching carefully. Steele is interested in eventually mixing a hesitation move into his motion to throw off hitters’ timing. The pause Stroman sometimes adds to his stride was a perfect example. ‘‘Timing messes with every hitter,’’ Stroman said.…