If the Chicago Cubs' season started last Friday with their series against the Pittsburgh Pirates they would be in first place in the NL Central and Dale Sveum would be on top of the world.Don't blink because you might miss it. The Cubs are on a four-game winning streak entering tonight's contest with the equally dismal Houston Astros. It is the first the Cubs have strung together four wins since winning the last game before the All-Star break and sweeping their first series back against the Arizona Diamondbacks.At 55-86 and 29.5 games out of first place, it seems useless to ...