My Best Guess at the sequence of events:
DBC informs OTT that he does not plan to extend with a long term deal with them and wishes to try FA next year
OTT and DBC discuss trade and DBC provides preferred destinations
OTT fields offers but does not allow DBC's Agent to negotiate contract extension, hoping to improve offers
DBC Agent leaks preferred destinations to media as a way to control where DBC goes
DET make lowball offer to OTT
PD declines and continually talks with other teams (NYI, ANA, CAR, etc.) in hopes to drive offer up
OTT leaks other teams in discussion to help create upswing in price
Offers are all underwhelming and at 1-Yr Rental Price
OTT/PD allow DBC Agent to negotiate extension prior to trade
DBC Agent kills off the likelihood he signs extension with ANA or NYI, leaving OTT with DET and their underwhelming offer
Other teams leave the discussion over the course of days
DBC Agent discusses extension with DET, DET offers less term or money than DBC wants
Now everyone is in a weird holding pattern and doesn't know what to do
HFBoards debate non-stop for days on end