For another example of two teams working in concert, take a look at T2. There are two teams that have traded with each other three times( out of 4 for one team, 6 for the other). The Good team is a killer squad and the bad team just keeps sending them talent. Varitek for Hinch in June ? By then Hinch was in AAA and Varitek was off to the races.
The kicker is that the e-mail address for the bad team is the team name of the good one ! Oops !