1) Baseball slang. A strategy based on teamwork and good execution. Keeps the ball infield using walks, base hits, stolen bases and bunts.
2)term used in American politics to utiltize a means to an end through evil practices.
The migration of sport to politics is in the 'inside' depicted as a hall of mirrors. By providing info 'from the inside' results in overconfidence leaving the informants in fact clueless about what actually happens in the game or simply, bullshit baffles brains.
1) The Baltimore Chop - where a batter swings downward on the ball resulting in a skyward rebound, allowing the batter to reach first base safely before the opposing team has a chance to make a play.
2) When McCain challenged Obama's committee work in the Senate, Obama brushed it off with "that's Senate inside baseball."