safe pair of hands

Short definition from Wiktionary

Noun

1. 1
   The ability to catch and keep hold of (the ball, etc.)
2. 2
   A player who has this ability.
3. 3
   An experienced person (especially a leader) who can be trusted to do a decent job and not to make serious mistakes; often in relation to a task which is difficult and important; often suggesting blandness or a contrast to someone brilliant but erratic.