The Dolphins' preseason is not without issues. Nothing may have been more damaging than the knee injury to Dustin Keller, but Miami has other areas of its football team that provided plenty of disappointment this offseason and preseason.Now, it’s real. Players are on the bubble, decisions have to be made and a 53-man roster must be filled. This is the process that no one likes, but is a necessary evil. How this team is formed, which includes many new faces of rookies and free agents will ultimately determine the team’s season.Everyone adjusts to a new season and the disappointments of the offseason are addressed.Can this team find continuity on the offensive line? Is Dion Jordan ready to play from opening day? Does the tight end position have enough depth with Charles Clay and others? Those are just some of the questions that loom large with this franchise. Here are somethings that were truly disappointing this offseason.