He is not worth his salt if he fails at this juncture.

To haul over the coals

I <u><em>have a bone to pick with</em></u> you in this matter.

To hit the jackpot

To keep the ball rolling

The arrival of the mother-in-law in the family proved a <u><em>rift in the lute</em></u>.

A fair crack of the whip

There is <u><em>no love lost</em></u> between two neighbours.

Get down to brass tacks