I like 90% of these changes. The one thing I might do, though, is give coaches an option in the practice plan to put minutes into durability practice. As it stands, we have no control over how durability would improve, and if that makes the difference between an impact player being healthy and that same player being injured for big games, that could be an issue.
Other than that, some good changes, especially with rankings. Looking forward to testing it out (I had a team in the BETA world, but I switched computers and lost the link to it in the process).