ON ACTING: The Tentative Actor
I (and many others) often advise actors, who are perhaps tempted with carefulness raher than with boldness, to make a character/acting choice (right or wrong) and then "go for it"...casting directors often call it "taking a risk"; i.e., holding nothing back.
Think of it this way. Let's say I want to buy a fast car (the equivalent of an exciting actor) and I go to the testing track to test them out. Which car are you more likely to buy: a car going 160 miles per hour the wrong way around the track; or a car that is going 120 miles per hour the right way around the track? The first one right? You buy the faster car and you turn in into the right direction. The same with actors.
The casting director sees an exciting actor make a wrong choice of character interpretations, the casting director can simply make a character adjustment and ask the actor to do it again. On the other hand--and unfortunately--with an unexciting actor, the casting director says "thank you...goodbye", and doesn't care which way their performance car was headed, right or wrong...except out the door.