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.
The average pitch count in a game is 285. So a good guess is about 41 baseballs to a game. There are 162 games in a season, so almost 6,596 per team, per year. There are 30 teams, so that's approximately 197,871.43 baseballs used per season. This only accounts for regular season games.