A display of incompetence
- Come on, it's amateur hour from top to bottom.
As far as I can throw
- Don’t lend her money. I trust her about as far as I can throw her.
Bag of tricks
A set of methods or resources
- No matter what the situation, we could always count on her bag of tricks.
- On-line thieves have developed a variety of crafty methods to try to deceive you. Beware of their bag of tricks!
Find one’s voice
Become more confident in expressing oneself
- Witnesses often find their voices when they hear a reward has been offered.
Drop the ball
Fail to fulfill one’s responsibilities
- For God's sake don't drop the ball on this - we're relying on you.
Lose one’s touch
Suffer a decline in one’s skill at doing something
- It's good to see their goalkeeper's not losing his touch.
Not cut out for
Not naturally skillful enough to do something well
- I'm not cut out for an office job.
Sharp as a tack
- Because the new salesman was as sharp as a tack, he was quickly promoted.
Green as grass
Lacking training, naïve
- Those who are as green as grass can't be leaders of groups.