leave something to chance

At the same time, he had left too much to chance.

He's not the man who would leave anything to chance.

But you never want to leave the game to chance.

It was not like him to leave things to chance.

I don't think he would have left anything to chance.

Then, the other 25 percent can be left to chance.

You left nothing to chance, not from the very first step.

You get the feeling that nothing is left to chance.

An early decision was made that use of the system must not be left to chance.

Leaving nothing to chance has become the name of the game.