IMO the greatest example of this was discussed on the 30 for 30 Elway to Marino. In essence it was charged that the raiders were screwed by the league office of making a trade for the 1st pick in the 83 draft. For some unexplained reason the bears were called by the league office prior to completing a deal with the raiders for the 5th pick (this would have given the raiders the final piece needed to trade with Indy for pick #1. It was charged by Marvin Demoff and Ron Wolf--if this is fact true...............................keeping in mind that the raiders and Pete Rozelle were feuding at this time. If you have not seen this 30 for 30 special I suggest watching this.