These are the draft writeups on each player’s weakness from either Dan Brugler or NFL.com
Trevon Diggs from Brugler:
STRENGTHS: Tall, long corner with the strength of a safety…lower body twitch to stay composed in his movements and spring in any direction…balanced in space to stay within arm’s length of receivers, easily reacting to different routes…enough long-speed to stay attached to vertical routes…outstanding ball skills due to his hand-eye coordination, making athletic plays on the ball…gets his head turned and keeps an eye on the backfield to read both the man and the ball…skilled with his off hand and understands body position…uses a patient stab in press-man without sacrificing his footing…shows the play strength to shed perimeter blocks…rarely out-physicaled by receivers…competes with tremendous confidence…returned kicks and punts in college, averaging 9.2 yards per punt return (31/284/0).
WEAKNESSES: Not a technically sound player…tends to get lazy with his footwork and stance, hindering his breaks…wasn’t coached to pedal in college…prematurely opens his hips and makes it tougher on himself to shadow…handsy downfield with a bad habit of grabbing to slow routes…late to recognize route combinations…needs to improve his awareness of field landmarks (first down marker, sideline, etc.)…fast and physical downhill in run support, but often arrives too hot with wild tackling technique…missed most of his junior season due to a broken foot (October 2018), requiring season-ending surgery…missed one game as a sophomore due to a right foot injury (September 2017).
SUMMARY: A two-year starter at Alabama, Diggs lined up primarily at left cornerback in Nick Saban’s press-man heavy scheme, occasionally seeing snaps vs. the slot. He was better known as Stefon Diggs’ younger brother growing up, but he grew out of his shadow and carved his own path, playing his college ball at Alabama instead of Maryland and changing his number (wears No. 7 due to Tyrann Mathieu). Diggs arrived in Tuscaloosa as a two-way player and his offensive background benefits him on defense with his ball skills and awareness for what the offense is trying to do. He will drive his NFL defensive coaches crazy with his hopping around and sporadic technique, but his read/react skills and athleticism allow him to get away with it. Overall, Diggs needs to clean up his technique and discipline in coverage to reach his full potential, but he has shown improvement in those areas and projects as an NFL starter due to his size, twitch and competitive nature.
Zack Martin:
WEAKNESSES: Ordinary body style with average-at-best arm length – not physically impressive or imposing…only average lateral shuffle quickness and will struggle with edge speed…can be too much of a waist bender at times and allows his momentum to lean forward too much – appears much more comfortable in tighter quarters…still improving his pre-snap awareness to recognize extra pressure and make the proper adjustment…has never started inside with all of his experience coming on the edges at tackle.
DLaw:
WEAKNESSES: Narrow trunk and lacks elite size and muscle build for the position…needs to improve his POA strength when rushers get into his body, struggling to shed with an undeveloped anchor – can be controlled by single blockers at times…long speed is adequate at best…limited experience in coverage and needs to improve his body positioning and patience when asked to drop vs. the pass…work habits and overall character and maturity have been questioned – served three separate one-game suspensions (Oct. 2012 vs. UNLV, Dec. 2012 vs. Washington, Sept. 2013 vs. UT-Martin) for “violation of team rules” incidents.
Vander Esch from NFL.com
Has just one year of starting experience
Still filling out his frame
Has some struggles in taking on blocks and will get washed away by down blocks
Hasn't learned to use hands effectively to punch and separate
At times, will over pursue or run himself out of position in attempt to play fast and avoid having to deal with blockers