Compressing the project duration means slack (float) on noncritical activities will be reduced. When slack of noncritical activities is reduced, the chance of new critical paths occurring increases; hence, the risk of the project becoming late increases. In addition, compressing will have the following other impacts on managing the project:

	a.	Reduces flexibility by using slack
	b.	Can increase number of critical activities
	c.	Can increase interdependencies of paths
	d.	Makes resource scheduling tighter (critical)
	e.	May increase costs.
	f.	All the above