Standard negotiating strategy.
The ultimate decision-makers (York and Crabtree) do not participate directly in negotiations, so that the "let me check with the boss/my client" can be used by the actual negotiators.
When there is an interminable impasse (like this negotiation), the party with the upper hand (the Niners) offers to bring in the actual decision-maker (York), when he senses that the other decision-maker (Crabtree) has painted himself into a corner, and is looking for a way to end the impasse, while still saving face. If Crabtree accepts York's invitation for a face-to-face, then Crabtree can have an "out" to sign a contract, by stating that misunderstandings had clouded the earlier hold-out, which were dismissed in actual face-to-face conversation.
The NFL negotiators did this same thing in the last CBA negotiation with Gene Upshaw. York is getting excellent and skilled negotiating advice (probably from the NFL office), which may be one reason that York has not formally filed a tampering complaint with the NFL office. The Niners (as directed by York) have taken the high road throughout, confident that time works in their favor.
Eddie D. was a tough negotiator, and I'm sure that young Jed is also using his uncle as a sounding board in this matter.
Conversely, if Crabtree declines this invitation to meet face-to-face, it will absolutely confirm Crabtree's undesrirability as a Ninere employee. Agent Parker is smart enough and expewrienced enough to know when an olive branch is being extended, which is exactly what York is offering.
[ Edited by jimbagg on Sep 16, 2009 at 11:12 AM ]