What does SM vocal trainer Jang Jin Young think about the youngest team's performance on 'Idol School'?

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After watching the Rookie team, including Choo Won Hee, Baek Ji Hun, Park Sun, Kim Na Yeon, Lee Yoo Jung, Kim Eun Kyeol, Jung So Mi, and White Michelle rehearse for their 1st debut test, Jang Jin Young critiqued, "Honestly, this just feels like a normal school festival. You girls have a long way to go if you want to be pros."

Stephanie also critiqued the members individually, saying, "I didn't even watch you perform from above; however, I could mainly see the top of your head.  It means you don't have any confidence," she directed towards Choo Won Hee. To Michelle, she commented, "Your expressions were great but you stood out too much. You acted like you were the main star. You can't expect to be in a group all alone."

Check out Rookie's final 1st round performance after heeding the teachers' advice, above!