So since this seems to be learning weekend from The Deadliest Catch; let's look at progressive discipline. There are 4 things to be sure to include whenever you discipline someone: what was wrong when; what is the expectation; what is the time period to fix it and what happens if you don't. In this clip I linked, Captain Andy covers those items. Also, he delivers the message to everyone at the same time. This didn't take 6 times; time outs or tons of forms. Yes, there are a couple things unique to this work environment, but you get the picture. Well done, Captain Andy!