Williams 2003 is a critical appraisal of securitization theory and its relevance for the study of international relations and security. More recent overviews include Emmers 2007, which provides an undergraduate-level introduction to the key contributions and limitations of securitization theory.
Major League Baseball teams carry five to 10 assistant coaches, including two base coaches, a bullpen coach, and hitting and pitching coaches. Each earns between $150,000 and $700,000 per season, according to a 2011 story in The Wall Street Journal. Experience and success bring higher salaries.
In modern day baseball, teams generally have five starting pitchers, and they take it in turn to start a game every fifth day (hence the phrase rotation). Sometimes, if the schedule pans out, a team can get away with a four man rotation, and in the distant past some teams managed a three man rotation.