Just look at the roster. Greene was cut by the Astros. Wise and his career .268 OBP is signed to be the 4th outfielder and top bench hitter. Keppinger is basically a utility player who has always been weak defensively - ended up the Sox need him as a starter instead of a role player.
Flowers and Tank just haven't pushed out to start producing credible numbers.
As a team, they don't work counts; I tend to think that's a weakness in organizational philosophy and instruction, but it's just a guess as it's been going so long and long-time manager Guillen in his own words had little use for patient approaches.