I think this is due to the 'Collective Bargaining Agreement"... so not much can be done, but it peeves me.
And this is not so much in regards to "preseason games" as it is practice. "NOT ENOUGH time to work with the full roster". Reps with the #1's.
And complicating this is that even if somehow they amended the rules to allow more time how could you do it? Equaling things out for the QB's mean the WR's and TE's get lots of QB's and the QB's only ⅓ of that much time with them... no way are you limiting the time your starting QB gets with the #1.
So there's no good solution, I don't think... you just do as best you can.... and that said... 'knowing' Goff is going to be the starter I think you have to adjust somewhat. - JamesJM