So let's be objective here.
In the 11 previous years Linehan has had just 2 Top 10 rushing attacks...Minnesota in 2002 and 2003. With the Lions...24, 23, 29, 23 and 17.
After the Lions 2012 season there were rumor he would be fired because of these things..development of Stafford and settling for FGs
http://www.prideofdetroit.com/2012/12/24/3801584/detroit-lions-rumors-scott-linehan-pat-shurmur
This past year the offense failed down the stretch in second halfs and they lost 7 of 9 games where they blew leads with offense being ineffective.
Their vertical game also consisted of one Calvin Johnson out jumping a lot of dudes.
So what is the improvement here?