Every job has its share of surprises. A key piece of equipment breaks down. A traffic accident forces a change in delivery routes. A client calls to say you’ve won the contract–but they need the order filled three months earlier than planned. No matter where you work, you need to be able to improvise to meet your objectives, or at least cut your losses.

“The Presidency was no different,” former tenant in the White House Barack Obama said in describing his job.

He describes his Party’s fight for the Affordable Care Act in 2009-2010 in his first term. Improvising political decisions with both Democrats and Republicans while juggling scores of other issues that beset any President captures what he and his partners had to do repeatedly. Obama knew well those compromises, dotted with sudden and unexpected twists and turns, had to be dealt with. Improvisation was the order of the…