Does Jackson have a deadline?

Phil Jackson has not done a lot regarding his search for a new head coach as he thought Steve Kerr was going to take the job. Then he turned to Derek Fisher, but wasn't able to speak with him until this week. Should Fisher decline the job, Jackson will need to come up with option No. 3. Jackson may have a timeline to hire his head coach, so Fisher accepting the job would allow the Knicks team president to hit the benchmark.