A 1st or 2nd does not need to be used on a WR anyway. They are always available. Diggs, Adams, Cooper, Hopkins, Williams. Everyone is looking to trade WRs. Build the rest of the team first then WRs will be available for pennies on the dollar.
They are usually looking to trade WRs because they signed them to big contracts that they regret giving the WR. I'm not sure there is value at WR in the 1st round of this draft, but that changes year to year. But there probably is good value at WR in the 2nd or 3rd this year.