Letting Rondon go would be a massive mistake imo. No other striker in the league puts in as much effort as he does. He holds the ball up well most of the time, and never complains. Lets be realistic about his goal return which isn't too bad considering hes fed on absolute scraps, especially with Phillips out. 30 mil sounds good, but who do you replace that kind of work rate with, who is gonna get the goals with that kind of service?