Are you worried about our defense? Does Lovie have a plan?

I am worried, a lot! It is nice what happens on offense but ..... When Lovie came back to town my first thought was great, he's gonna fix our defense and we have some weapon on offense too, with decent QB and OC it might work well, playoffs here we come!Since then he managed to chase away nearly everyone on that defense and what we've got is not worth mentioning. And we do have some cap space, so why no real moves on defense?Please tell me there is a plan. I see no plan there! I am really worried, I am sick of losing seasons, and with our current roster we will have another losing season, no Winston can help there, not even Brady or Luck could!