While Opening Day is only a week away and there will be a lot written and said about the 25 man first game active roster, the bigger question is how many Astros will there be this season?
Even teams that go wire to wire in winning pennants don't finish the season with the same 25 that started it. A team that is coming off a 106 loss season with a number of new faces and a significant number of talented minor leaguers only a phone call away can expect a number of changes during the year.
Most of the roster changes deal with pitchers. For one thing there are more of them than any other position on a major league roster. They also are the most fragile. A sore arm for a pitcher is much worse than a sore arm for an outfielder. The latter can still perform unless something is actually broken or torn. A pitcher can't.
This doesn't even consider effectiveness of those pitchers. Just being a smidgen off in command over a period of time often results in a ticket to Oklahoma City and a repl...