Not being part of your rebellions this is just an outsiders opinion, but what it sounds like is you had a workable plan as long as certain assumptions and situations worked out. Now a WELL planned action would have either had steps to ensure those situations occurred, or well form contingencies to ensure the plan would still have the best chance of success.
If the Queen had reason and the ability to remove or limit those on whom your plan relied on, then to me that doesn't really sound like a great plan.
