Manchester City sanctioned the departure of Cole Palmer last summer – and BBC pundit Garth Crooks believes it was a very smart move from the youngster. City decided to cash in on their academy product when Chelsea came calling at the end of the window. News broke of Chelsea’s interest in Palmer and he completed his £42.5 million switch on deadline day. It was a move that raised eyebrows, and at the time it looked a very good sale by City and there was a suggestion Chelsea had overpaid for a player lacking Premier League experience. But Palmer has absolutely flourished at Stamford Bridge, and h…