TNSTAAFL.

 He knows the price of everything

And values nothing.

Bug out.

 Worms are not insects, but he is repellent.

Something is bugging her.

Progress isn't what it used to be.

 The more things change, the more they remain the same.

Ah, yes, they remember it well.

The Undecideds.

 It takes only a few to pull down the average.

Depending on the sample size.

The Right Stuff.

 Compatibility is very important. Beat of the same drummer.

March lock step,  as in a chain gang.

Hustle in your bustle.

 A little excitement is the missing ingredient.

Couldn't be better, in other words.

Conflicting interests.

 Extenuating circumstances or circumvention?

Orders are orders.