Dean and joe used Jeff as proven by scott martin, joes brother-in-law being made the trustee of deans A's.
Jeffs attempt at creating a new controlling series of shares, worth $2k at the time, was to stave off the controlling A's so dean couldn't wrest back control - this clearly shows Jeff and dean were not in cahoots, in fact, it shows the opposite.
Now, when Jeff attempted that move, joe and dean hatched their plan - joe and scott voted Jeff out and dean started the pro-joe website furthering the joe/dean partnership.
Joe has also stated that he and dean tried to lure MS into trsi since MS was under no obligation to q once dean defaulted on their agreement.