ODD play any thoughts

[fonzzy07]

Had this today. team A to throw in under the basket they are shooting at so 4 members of the team huddle up at the freethrow line ( I mean huddle put arms around each other ect) with the 5th person goes to imbound the ball. The 5th player from a says break and then they all scramble out of the huddle to an assigned place. This just did not seem legal to me however I could not think of a reason to stop it. Am I wrong to think that this is not legal and if so what could I use to stop it.