Complex sentence: But the next year, he won a starting job in the Braves' outfield and had one of his best years ever, batting.315 with a career-high 21 home runs and leading the league with a.415 on-base percentage.
Split into simpler sentences: But the next year, he won a starting job in the Braves' outfield, and had one of his best years ever. In that season, Smith batted.315, with a career-high 21 home runs, and he led the league with a.415 on-base percentage.