The Rock Star will say, “I will do these 10 things by next Friday.” And then next Friday rolls around and 8 of them are done. This repeats week after week, but I can never tell which 8 will get done. They’re boastful and proud that they got a lot done but the rest of the team can never count on them to get any specific thing done.
The other person will say “I will do these 5 things by next Friday.” And then next Friday all 5 are done. And they repeat this week after week after week.
Give me the second person every time.