Do I trade Kenny Britt and Matt Schaub for Philip Rivers if I have Matt Stafford?

I have VJax, Hakeem Nicks, Calvin Johsnon and Kenny Britt in a league that starts 2 wr.
our league starts
1 qb
2 rb
2 wr
1 te
1 wr/rb
1 k
1 d/st

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