Development costs and sales were in step with each other if you like.

FORBES: Call of Duty: Biggest One Day Entertainment Sales Ever

Again, the two measures kept closely in step with each other, with the cloud cover swinging from 65% when cosmic rays were weakest, to 68% when they peaked.

ECONOMIST: Global warming

If metropolitan areas moved in lock-step with each other, they would have correlations of one.

FORBES: There Is No National Housing Market

Heynckes is an intense, red-faced taskmaster, whose side is so organized that the players practically move in lock-step with each other.

WSJ: Bayern Munich's Tough Manager Call