Interpret this compilation however you will. This is just to start some discussion. P.S. Formatting sucks.
Here are some advanced defensive stats for Diaz as well as some other highly thought of recent DC's. Probably not elite, but objectively, probably much better than many are giving him credit for. I guess it depends how much stock you put in advanced stats. It's kind of like the baseball argument of RBIs vs wRC, old school vs new school.
Diaz-
FEI. S&P+
MSU 2010. 12 22
Tex. 2011. 9 9
Tex. 2012. 38 32
Tex. 2013. 31 44
LT. 2014. 9 24
MSU 2015. 51 37
Average. 25 28
Aranda-
FEI. S&P+
Haw. 2010. 71 32
Haw. 2011. 105 82
Utah St. 2012. 14 10
Wisc. 2013. 13 10
Wisc. 2014. 33 29
Wisc. 2015. 11 7
Average. 41 28
Brown-
FEI. S&P+
MD. 2010. 20 36
UCONN. 2011. 23 34
UCONN. 2012. 22 38
BC. 2013. 98 80
BC. 2014. 68 36
BC. 2015. 5 3
Average. 39 38
Chavis-
FEI. S&P+
LSU. 2010. 9 13
LSU. 2011. 2 2
LSU. 2012. 6 7
LSU. 2013. 38 35
LSU. 2014. 17 9
TA&M. 2015. 14 29
Average. 14 16
Venables-
FEI. S&P+
OU. 2010. 4 8
OU. 2011. 12 7
Clem. 2012. 55 34
Clem. 2013. 17 12
Clem. 2014. 2 2
Clem. 2015. 7 4
Average. 16 11
Foster-
FEI. S&P+
VT. 2010. 25 23
VT. 2011. 31 17
VT. 2012. 24 19
VT. 2013. 4 3
VT. 2014. 3 10
VT. 2015. 43 40
Average. 22 19
Narduzzi-
FEI. S&P+
MSU. 2010. 35 29
MSU. 2011. 6 6
MSU. 2012. 2 5
MSU. 2013. 2 2
MSU. 2014. 34 22
Average. 16 13
Smart-
FEI. S&P+
Bama. 2010. 16 5
Bama. 2011. 1 1
Bama. 2012. 4 1
Bama. 2013. 7 5
Bama. 2014. 12 3
Bama. 2015. 2 1
Average 7 3
Pruitt-
FEI. S&P+
FSU. 2013. 5 1
Geor. 2014. 35 17
Geor. 2015 16 11
Average 19 10
Here are some advanced defensive stats for Diaz as well as some other highly thought of recent DC's. Probably not elite, but objectively, probably much better than many are giving him credit for. I guess it depends how much stock you put in advanced stats. It's kind of like the baseball argument of RBIs vs wRC, old school vs new school.
Diaz-
FEI. S&P+
MSU 2010. 12 22
Tex. 2011. 9 9
Tex. 2012. 38 32
Tex. 2013. 31 44
LT. 2014. 9 24
MSU 2015. 51 37
Average. 25 28
Aranda-
FEI. S&P+
Haw. 2010. 71 32
Haw. 2011. 105 82
Utah St. 2012. 14 10
Wisc. 2013. 13 10
Wisc. 2014. 33 29
Wisc. 2015. 11 7
Average. 41 28
Brown-
FEI. S&P+
MD. 2010. 20 36
UCONN. 2011. 23 34
UCONN. 2012. 22 38
BC. 2013. 98 80
BC. 2014. 68 36
BC. 2015. 5 3
Average. 39 38
Chavis-
FEI. S&P+
LSU. 2010. 9 13
LSU. 2011. 2 2
LSU. 2012. 6 7
LSU. 2013. 38 35
LSU. 2014. 17 9
TA&M. 2015. 14 29
Average. 14 16
Venables-
FEI. S&P+
OU. 2010. 4 8
OU. 2011. 12 7
Clem. 2012. 55 34
Clem. 2013. 17 12
Clem. 2014. 2 2
Clem. 2015. 7 4
Average. 16 11
Foster-
FEI. S&P+
VT. 2010. 25 23
VT. 2011. 31 17
VT. 2012. 24 19
VT. 2013. 4 3
VT. 2014. 3 10
VT. 2015. 43 40
Average. 22 19
Narduzzi-
FEI. S&P+
MSU. 2010. 35 29
MSU. 2011. 6 6
MSU. 2012. 2 5
MSU. 2013. 2 2
MSU. 2014. 34 22
Average. 16 13
Smart-
FEI. S&P+
Bama. 2010. 16 5
Bama. 2011. 1 1
Bama. 2012. 4 1
Bama. 2013. 7 5
Bama. 2014. 12 3
Bama. 2015. 2 1
Average 7 3
Pruitt-
FEI. S&P+
FSU. 2013. 5 1
Geor. 2014. 35 17
Geor. 2015 16 11
Average 19 10