This Minnesota lawn is always the last to green up. The first picture was taken 4/13 in the back yard, you can see it totally matted down. The second taken 4/22 in the front yard and you can see the side by side with the neighbors lawn. This whole area in the second pic (between the driveway and the neighbors) was sodded last year but it looks exactly the same as the rest of the lawn. (Front and back have looked the same every week.) Soil test results: OM - 9.3% Soluble salts - .3 mmhos/cm PH - 7.4 (calci 2762 ppm, mag 574 ppm) Estimates soil texture- Coarse Bray 1 Phosphorus - 24 ppm Potassium - 140 ppm They want to give up and resod the whole back yard, but by the looks of the front, new sod will not help. What could be the problem? and how should it be fixed?