He went 23 — 4 with a 2.07 ERA, won the pitching triple crown (wins, ERA and strikeouts), set a major league record with 13.2 strikeouts per nine innings, did not allow a home run in any of the 293 at bats against him with a runner on, permitted
only three
leadoff walks to score (he walked the first batter
only six times in 213 1/3 innings) and struck out 37 % of all batters he faced.
The other guys will never be
leadoff types, so you're pretty much
only left with the option of switching Ender with Swanson.