How do you keep a team from collapsing?

[Koko Ed]

My team, the Ratpak, is a small, closely knit group of dedicated students that work hard and really get a lot of stuff done. This pre-season, though, we have run into somemembership crises. Just two questions:

1. If your team gets new members, whats the best way to get them involved?
We have a pre season with actvities that encourage creative thinking, team building and getting to know one another.

2. If a long-faithful member leaves on conditions of returning, how are you supposed to act? Do you just change your team, or do you lose the member
If a member leaves they leave. If they come back before the build season that should be reasoanble but in the middle or just before traveling probably wouldn't be good.