First off great pick-up of Jackson, these are the kind of numbers he put up prior to his 2 pectoral injuries.
It would help to see how your scoring is, if it is not sack heavy, I would drop mathews as he does depends on sacks for his points. If it is sack heavy I would drop DJ Williams as Woodly will get his share of sacks too. DJ Williams i understand will be out for a few weeks. he was a tackling machine himself totaling 119tackles and 6 scaks last season.
If i had these guys on my team and sacks are only worth 2 or 3 points i'd drop Mathews.
Hope this helps
Bill
Thanks
Bill