Kruger was number one on the depth chart going into the offseason to take JJ's spot. So he was always likely to be a starter this season unless Upshaw absolutely massively outplayed him.
Ironically, Suggs' injury may have been the best thing for Paul's career as now he will get to play the much more glamorous rush LB spot, which frankly suits his talents better. And Upshaw can slide into JJ's spot (which suits his talents to a tee.)
My motto was always to keep swinging. Whether I was in a slump or feeling badly or having trouble off the field, the only thing to do was keep swinging. -Hank Aaron