Proficiency is absolutely key. I was troubleshooting a feature with a Jr the other day and asked him to search through the log out put (that was currently being displayed on his terminal). Unfortunately he was trying out a new emulator and didn’t know how to actually search the output.

We went about it a different way, but at the end I just told him it didn’t matter what tools he used as long as he actually knew how to do what’s required with them and to please get that figured out for next time.