That being said, being involved in putting two companies or units together is not easy: Processes need to be aligned, systems updated, structures shifted, and responsibilities redefined.

FORBES: Take Advantage of Merger Integration -- Before it Takes Advantage of You

Here's the problem, though, is when you've got all those things fitting together it ends up being a big, complicated bill and it's very easy to scare the daylights out of people.

WHITEHOUSE: President Obama Holds a Town Hall in New Hampshire