There is more to being a GM than draft picks.
Phil Savage and Tim Ruskell are quality candidates and hold the same job title that Rick Spielman has, but have they actually been the front men in trade negotiations? Have they negotiated a contract for a free agent?
The difference between Miami's Director of Player Personnel and other team's directors of player personnel is that Miami's does what a GM does without the final say. Rick Spielman was the guy on the phone with Randy Mueller getting the Ricky Williams deal done. Rick was the guy on the phone with Ron Wolf working on the potential Matt Hasselbeck deal. At the same time, Rick was negotiating a contract extension with Matt's agent that was agreed upon had the deal gone through. Do you know why that deal didn't go down? Rick had to hunt down Dave to get the approval. During the time that Rick and Ron agreed to a deal and the time that Rick actually got in touch with Dave, Mike Holmgren moved in and got the deal for Hasselbeck done.
What is Phil Savage's and Tim Ruskell's experience in dealing with actual pro contract and pro trade discussions? They don't have it.
IMO, there strength in the drafting department is canceled out by Rick Spielman's strength as a pro talent evaluator and negotiator.
Ron Wolf will help out in the drafting department in Miami as a consultant.
IMO, a combination of Ron Wolf as a consultant and Rick Spielman as the GM is the best thing the Dolphins can do. Rick has essentially done the GM job over the past 4 years, and Ron Wolf is a terrific draft guy. Rick can learn a lot from Wolf, and I think it will be easier for Rick to learn from Ron Wolf in the drafting department than it would be for Phil and Tim to learn on the fly about contract and trade negotiations.