Not a fan of trading for a WR , we'd have to give up picks and they are expensive. I'm a believer that good WRs can be found on day 2 and 3 in every draft so I'd be taking one almost every draft to develop them
Trade Ruiz to the Chargers. They don't have a C on the roster and he'd reunite with Harbaugh who he played for at Michigan. Player for player trades rarely occur, so I doubt it would happen, but it addresses a need for both teams.
The draft is always the best way to acquire talent, but it's not the only way. With limited picks, teams have to look at other ways.