Having the ability to choose whether a project stays in its current form where tasks can be completed out of order OR if they can be locked down so they are forced to be completed in order.
Task 2 is not able to be completed until Task 1 is completed, etc.
There are some processes that truly need to happen in order. It would also be nice if work didn't show up on Users To Do lists until their task was "unlocked" by the tasks prior being completed. I have found the Wrike Bot path of trying to create dependencies to be annoying and not helpful for my user base thus far.