Marvin, hope you don't mind me using your thread for these cut ups.
One question asked last season was 'why is Reid not used as the deep safety in single high looks and instead it's Bethea'. Since Reid is the more athletic of the two, shouldn't he be tasked to cover the deep middle?
Cover 1 Robber
Can't see Bethea from this view, but I am guessing that the 49ers are showing a cover2 shell since Reid is not in the middle of the field. Reid will come down to rob the middle zone. Man coverage all around. Notice the split by the WR that DJohnson is lined up across from - outside the numbers (wide). Also notice where the ball is on the hash marks.
All the pass defenders take outside leverage to funnel towards the middle of the field where Reid is shallow, and Bethea is deep. I think DJohnson should be taking inside leverage, using the sideline as a help defender, because of the wide split by the WR. This is how Fangio's CBs played and how CBs in man coverage normally play a WR split wide outside the numbers.
Tough to say since Tim Lewis/Mangini may want a wider split before applying this rule (use sideline as help defender). I'll be sure to look for this when the season starts. Just something I found interesting. Acker also takes outside leverage, but he is the boundary CB so it makes more sense.
Reid reading the QB's eyes.
Reid uses every inch of his length to tip the pass away. This is why Reid is often used as the robber, and not Bethea. Bethea has a couple traits that make up for his athletic deficiencies when it comes to playing as a cover1 safety - ability to recognize route combinations, and good angles. Reid's length allows him to cover good space and height.