I would love to know which stretches the training staff should or shouldn't be doing to prevent this rash of *checks notes* toe injuries.
Only Curtis Samuel has turf toe which is usually a sprain of the big toe.
And stretching in general is overrated when it comes to injury prevention. The bigger question I have is with regards to the soft tissue (hamstring and groin specifically) injuries the Bills have had and whether the reduced time with the Bills S&C staff in the offseason may be a factor.
Some injuries, like say the MVS & Buechele neck injuries, are largely bad luck. But, there is a lot of good research about how non-contact soft tissue injuries can be reduced by quality S&C practices. But, with the NFLPA pushing for more and more time away from organized team activities in the off season, more and more players are spending as much time as possible away from the team's S&C program and working with "their people" back at their home base.
That takes the control these types of injuries out of the control of the team's S&C staff and into the hands of the players and the people they choose to work with.