Detroit Lions draft preview safeties

 Using data from draftmetrics.com

62% of three year starters ran under 4.55.
68% of three year starters ran under 7.03 in the 3 cone drill.

Here are the guys who fit both criteria

Keelan Johnson ASU 4.54 and 6.77
Eric Reid LSU 4.49 and 6.99
Shawn Williams UGA 4.46 and 7.01

These guys ran under 4.55 but did not run the 3 cone drill
Matt Elam Florida
Sharko Thomas Syracuse
Earl Wolff NC State

Red flags
8% of three year starters ran over 4.71
Tony Jefferson Oklahoma
Brad McDonald Kansas
Zeke Motta Norte Dame

6% of three year starters jumped under 31.5"
Damion Stafford Nebraska