a weak link

a weak link (in the chain)

the weakest part of a system or the weakest member of a group of people that could cause the whole system or group to fail It's a strong team, though the goalkeeper may be a weak link because he's rather inexperienced. The weak link in the chain is the computer software that controls the system.

Common Names:

Name	Pronounced	Usage
Elena	E-le-nah (Italian), e-LE-nah (Spanish), ye-LYE-nah (Russian), ee-LYE-nah (Russian)	Italian, Spanish, Romanian, Bulgarian, Macedonian, Slovak, Lithuanian, Russian, German, Medieval Sla
Gavriilu	-	Old Church Slavic
Neptunus	-	Roman Mythology
Cory	['kɔri]
Afonso	a-FAWN-saw (Galician)	Portuguese, Galician
ToŠE	TO-she	Macedonian