How many times have you had your favorite team undergo a roster shake up? While most things in comic book characters' lives don't change (characters don't age, rarely get married, etc), often a team will change it's members. Life is about change but is this a good or bad thing?
It makes sense in TV shows when there's a mix up. Actors might want different roles or simply leave the show. In comics, you don't have characters that want to negotiate contracts. It's important for a team to know how to work together. After fighting missions along side each other, they know how to operate. It helps form a good defense and offense. They can get in, do their job and ensure innocents will be protected while catching the bad guys.
Changing a team's roster could give the comic a shake up that will make things interesting. Often it's used to gain attention. Is a change for a team a good thing?== TEASER ==
Pretty much every single team has had members come and go. The Avengers, Justice League and X-Men have had countless members come and go. Just moments ago, I posted about X-Force's team change. Even the Fantastic Four, which is a team that's basically a family, has had members leave. Is change a good thing?
When things are different, everyone needs to get used to it, not just readers. When a team has a new roster, they need to know how to work together.
How many times have we seen the X-Men or Avengers training together? You don't really see the Fantastic Four practicing in a " Danger Room" type place because they know how to work together. They can face a bad guy and not get in the way of other members.
It's good to mix things up once in a while. It can keep things from getting stale. Often it's just a bummer to see things have to change. But that's just the way life is. Why shouldn't that apply to comics as well?