First-Round Grades | Fernando Mendoza is Tom Brady’s successor | Ty Simpson will test Sean McVay | Cardinals made the right pick   The NFL draft is never boring.  After a first round filled with eight trades and a stunning selection of Ty Simpson by the Rams, the second day didn’t disappoint either. Quarterbacks went off the board once more, this time with the Cardinals and Steelers taking Carson Beck and Drew Allar, respectively.  Elsewhere, we watched as a run on defensive players defined the second round. A whopping 17 of the first 21 selections on Friday were on that side of the ball, including a host of edge rushers ranging from Zion Young and R Mason Thomas to T.J. Parker and Cashius Howell. But which teams did the best? Which failed the test? We break it all down with analysis and instant grades below. ROUND 2 33. San Francisco 49ers: De’Zhaun Stribling, WR, Ole Miss Stribling is the rare prospect who contributed at three schools.…