If it seems like the Cubs are more fun to watch this year — and are having more fun themselves — there’s a reason for that. “Last year, we had a good clubhouse,” first baseman Michael Busch told the Sun-Times on Sunday. The Cubs entered their Monday off day — a welcome breather between a pair of 13-games-in-13-days stretches — at 44-28, atop the NL Central standings and one game shy of the best record in the National League.