I don't see a point in trading Read unless you think Leier is better, or you think Leier will get claimed off waivers. If you think either is true, then yeah go ahead and trade Read. If not, Read is still a useful player on our roster.
I don't see either Read or Leier in the top 12.
Top 9: Giroux, Voracek, Simmonds, Couturier, Konecny, Lindblom, Weal, Filppula, Patrick
Bottom 4: Raffl, Lehtera, Weise, Laughton/Vecchione
Extra: Laughton/Vecchione, Read, Leier
The only scenario where I could see either Read or Leier in the lineup, aside from injuries, is if they use Lehtera at 4C and they don't want Laughton or Vecchione at W. In that scenario, I could see one of them sneaking in there as 4th line winger.