In this offense it is ideal if you have 4 good WR and 2 good TE.
It would be helpful to use more 12 personnel groupings next year to mix things up so you have to have 2 really good TE
In the 11 personnel grouping you really need a least 4 good WR in case of injury or to give someone a breather.
Now that Reynolds is more of a proven commodity it makes sense to use him in a WR rotation which will keep everyone fresher especially in the later part of the season.
With Kupp most likely to miss some time early in the season Reynolds is more important than ever. Certainly trading Kupp while he is still rehabbing makes no sense as his value will be very low plus he is a key to the offense.
For Reynolds to deserve more time he must play better than Woods or Cooks which seems highly unlikely.