This probably depends on how you have chosen to define the word team. If your definition is that we all have a common goal or purpose, then, in all probability, you consider yourselves a team.
But if you think more closely about that definition, then you could say that everyone running the Berlin Marathon is a team because they have the common goal of finishing the marathon in the fastest possible time.
Obviously, they are not a team.
A more purist approach to the definition of a team, and the one I prefer, is that a team is a group of people who have a common goal and who hold themselves mutually responsible for reaching it.
Ah, now that changes the picture a bit.
Do you feel mutually responsible for reaching the overall business goals of your company? Meaning, if you notice that I am in difficulty with some part of my area of responsibility, will you come to my assistance to make sure that we reach our overall goal?
Most probably not. If you do,...
Did you notice anything peculiar with your colleagues lately?
In the sense that they are sort of—well, how can I put it—regressing, not showing up at their level of maturity as constantly as they normally do.
From a developmental point of view, regression is mostly something we notice in smaller children. Here they were, doing so well at going to sleep, eating their porridge or whatever, and now suddenly they are back to behaving in a much more immature version of themselves.
But if you think about it, we all regress from time to time—probably more often that we would like to admit.
Essentially, we have three levels of functionality: