De'Von Achane was the latest in a pretty good line of high-profile players on whom the Miami Dolphins needed to make a call whether to extend, but not all decisions are created equal. By our count, Achane was the eighth Dolphins draft pick to come up for what was sure to be a sizable second contract over the past three years. The list includes Jaylen Waddle, Tua Tagovailoa, Austin Jackson, Robert Hunt, Christian Wilkins, Jevon Holland and Jaelan Phillips. Interestingly, the new deal for Achane has given the Dolphins a scorecard of four players extended, four players not extended. Hunt, Wilkins and Holland all were allowed to leave as free agents, while the Dolphins sent Phillips to the Philadelphia Eagles at the trade deadline last November. With the benefit of hindsight, it's easy to look back at which decisions worked out or didn't, but it's probably more interesting to look objectively at the decision that faced the Dolphins in each case.…