Here is how it will work:
1. We will go into the season with Fitz traveling with the team as the third QB, but he will not play unless absolutely needed. There is no reason to take snaps away Williams in garbage time, and to give Fitz only 10 snaps on the year. It's not right to waste a year on 10 snaps. There are only so many snaps in a game, and Dak will be taking the large majority of those with Williams needing the rest.
2. Should Dak go down for a short stint, you only play Williams with Fitz being ready.
3. Should Dak go down for a longer stint, It now becomes a battle between Williams and Fitz for who starts. If Dak goes down for a 3 or 4 weeks, then Fitz should then be given every opportunity to win the job, and I'm not sure he wouldn't