In general, critical contingency events relate either to the extent to which the ongoing plan is ...

In general, critical contingency events relate either to the extent to which the ongoing plan is
  being accomplished or to environmental events that might change things in the future

One way to avoid the roadblocks to effective planning is to limit planning to top
  management and not allow other managers to actively participate in planning/

Because Governmental regulations are helpful to management, they are not viewed as a
  roadblock to effective planning.

Operational plans, because they are derived from strategic plans, are aimed at achieving
  operational goals.