I thought the comment regarding needing to report to the AFL if an agreement had been made for an extension on top of a signed deal (I.e two year deal with a verbal agreement for a further two years) was particularly interesting.http://www.theage.com.au/afl/afl-news/afl-warns-clubs-on-shady-deals-20150916-gjoao5.html
Listing pretty much all of the rumours people have been claiming Geelong were doing. Hiring family members, planned contract extensions.
You would have to think that any such agreement in relation to free agency could be considered draft tampering given the contract signed by a free agent helps determine draft compensation.
In other words, if Geelong want to offer PD such a deal they better hope it doesn't come to light otherwise fines (for Geelong and PD) and draft sanctions might be in their future.