The NBA’s proposed operating budget has increased by nearly 8% year-over-year, and the league’s Board of Governors (BoG) were not adequately briefed on the candidates to replace Larry Tanenbaum as BoG chair ahead of Tuesday’s election, the Daily News has learned. These concerns were highlighted in a letter Knicks owner James Dolan sent to the NBA’s Board of Governors on Monday, according to a source familiar with the contents.