I have starting knitting a sweater. I am working on the back and there are do decreasing rows to sew sleeves in a the end. All they want me to do is knit 27 1/2 inches and bind off all stiches at end. I know I will be picking up stiches later on for the collar but I have never knitted a sweater without knitting where you will insert the sleeves. Has anyone every knitted a sweater like this?