The clause that includes Silas is not highlighted. I assume that the clause that is highlighted is selected for polarity and not for a false equating of men to Silas.
However, I made the mistake of running one more test and found my optimism was excessive. The sequence of actions in the verse is:
1. apostles & elders with consent of whole church DECIDE to select and send men.
2. implied: they SELECTED Judas and Silas
3. they SENT Judas and Silas
the men is generic as it is before the selection was made - you decide to select before you select.
