To cut the mustard

Syn: To suffice; to be good or effective enough, to pass muster, to be up to par, to be up to snuff

• Give me the bigger hammer. This little one just doesn't cut the mustard.- n'est pas sufffisant, à la hauteur

• I know the borough of Milton Keynes well. It's a charming place... but it doesn't cut the mustard where tourism is concerned.

• I won't study architecture. I am bad at drawing. I just can't cut the mustard.

 Synonyms:

• The proposals are defective and will not pass muster.- être acceptable

• How do we know if our service is up to par?- être à la hauteur

• If the program is not up to snuff, they move the children somewhere else.- être à la hauteur 

Source BBC TEWS: http://www.bbc.co.uk/worldservice/learningenglish/language/theenglishwespeak/2013/03/130319_tews_115_cut_the_mustard.shtml