Pro Football Focus impressed by Giants' secondary rehaul this offseasonBig Blue was among PFF's most improved in that category5/31/2019, 11:47 PMMay 4, 2019; East Rutherford, NJ, USA; New York Giants cornerback draft pick DeAndre Baker (35) runs during a drill during rookie minicamp at Quest Diagnostics Training Center. Mandatory Credit: Sarah Stier-USA TODAY Sports / Sarah Stier