Not sure why we should assume health improves during the season while they are still playing. Because Marshall and Jeffery were both improved on Monday? Marshall got re-injured. Maybe the MNF injury doesn't happen if he didn't already have a bad ankle, but Jeffery went from out 2nd half week 1, to not being able to stretch it out and go deep week 2, to having no visible limitations going deep or elevating in week 3, to not on the injury report to start week 4. Marshall was better physically in SF than he was to end Week 1. He was better physically to start Week 3 than he was to start Week 2. If your argument is the risk of re-injury, it's not really going to change at any point without extended rest. Also, eventually (in 5 weeks), there is a bye week, and if they were still hobbled at that point they would have 2 weeks to rest their injuries and become healthy for the 2nd half of the season.