You clearly have been lucky over the journey
Bad rounds are part of SC. I don't think many of your starting decisions has been particularly flawed, you just copped the bad luck. You could even hold Jones if he gets up and just pocket some cash from the Stewart trade (and then choosing the player you like rather than forcing him right down to maximise cash availability). Then after another week of data you will know where to spend that $$ more effectively.
I wouldn't be changing the rucks or any of your premos. You don't have too much MPM going on. So really you're just having to accept that 150-200 points are gone due to unfortunate injuries, and another 100 due to on field rookie roulette, and 100 more to captaincy carnage. That's 400 points of bad luck right there.
You just need to set yourself up for next week. If that means moving an extra 2 this week that's OK, but I don't think it's as bad as you might feel right now
Hopefully!