No.
You would be an Astros fan if you wanted the Astros to win because they would be Astro wins. Since you could replace "Houston Astros" with basically 28 other teams with the exact same result, you don't care about the Astros at all.
Heck no. I've rooted for every team at one time or another to help my team
No not at all
No....
I'm rooting for the Houston Astros and hoping they sweep the series against the Cleveland Indians. This is because I'm a Tiger fan, and their magic number is 4. If the Indians lose all 4 games, then the Tigers automatically clinch a spot in ALDS.
GO TIGERS!! 2013 World Champs!