ZeroCreativity said:
Just because no one has said anything about Greg becoming a level two or even three doesn't mean he hasn't advanced. Did they ever mention Warrick actually advancing a level? He and Nick were tied, Nick moved up, Warrick was suspended, etc. Did they ever make a big deal about Warrick moving up? Greg has been a CSI for two years, now. They work a lot. He's probably actually pretty close to being a level three if they only need to solve one hundred cases to reach that level. What we see on the screen isn't all that is in the CSI universe!