The politics of presidential appointments : political control and bureaucratic performance / David E. Lewis.

Politicization in theory and practice
The nature and history of the modern personnel system
Why, when, and where do presidents politicize the bureaucracy?
The pattern of politicization : a quantitative overview
The pattern of politicization : a closer quantitative analysis
Politicization and performance : the case of the Federal Emergency Management Agency
Politicization and performance : the larger pattern
Learning the lessons of politicization.