Keywordsrevenue diversification; income portfolio; organizational mission; contingency theory; non-profit organization; sports club; inefficiency; football betting; fixed odds; Fink Tank; National Football League; premature deaths; survivability; injuries; rule change; amateur sports; scoring; gambling; betting; market efficiency; prediction markets; efficient markets; gambling; behavioral biases; basketball; hot hand; streak; point spread; NBA (National Basketball Association); Environment; community; finance; nonprofit sport club; multi-level analysis; resources; NBA; maximum player salary; 1999 collective bargaining agreement; rookie contract
