2. Gym rat is usually a backhanded compliment given to players that make up for a lack of athleticism or talent with a strong work ethic. Almost always applied to scrappy, white guys. It is safe money that Jay Bilas will refer to Nate Wolters as a gym rat during the draft. Rock star is just a guy that seems destined to be a star, especially in terms of marketing. Noel's high top fade is very rock star-esque.
3. Upside is practically the most important factor for drafting players. GMs have to think a few years ahead and project how players will improve. Ever since the high school and now one-and-done era, teams don't have the luxury of seeing players with strong college resumés to scrutinize. The players oozing with potential get taken by lotto teams b/c A) these guys have the most potential to become a star and B) it takes a year or two to go from being a shitty team to a playoff team so these teams have time to wait.
The GMs with good scouts, coaches, and draft well look like geniuses and turn their franchises around but bad GMs that strike out a lot just end up getting fired and that's a big reason why teams like the Kings stay in the cellar. Successful teams tend to pass on projects because they're trying to win now and need good basketball players right away OR they're so stacked that they draft and stash foreign players and high upside players overseas or in the D-league. If you're building a team through the draft, you really need a keen understanding of risk/reward.
4. Another intangible cliché. More or less synonymous with being a "winner." If Player X and Player Y look interchangeable on paper, you draft the player that has more "it." "It" to me is just someone that looks like a game changer or put his imprint on a game. Guys prone to disappearing acts or turning into ghosts don't have "it." But you shouldn't draft a guy over a guy that quietly stuffs the stat sheet just because the first guy has "it," production generally outweighs intangibles.
5. For this draft, this sentence is: "Well, we should pick this guy because he will at least be a tradeable asset." Oladipo would be an asset because he has a very safe floor, intangibles, and elite attributes. McLemore because of elite attributes (athleticism, shooting). Noel b/c of elite attributes and b/c bigs are always worth more. Bennett b/c of safe floor and elite attributes. Adams b/c of bigness and floor. Len b/c of bigness.
There isn't a single player in this draft that is a sure-fire cornerstone for a franchise so you just look for the best value per draft position that you can and wait your turn for the next draft.