NFL Week 4 lessons: 49ers look like the league's best while Kirk Cousins proves he still has it
The 49ers are rolling behind Shanahan's creativity, Cousins is thriving at age 38 and Dallas has an offense capable of overcoming its defensive flaws
<p>The 49ers are rolling behind Shanahan's creativity, Cousins is thriving at age 38 and Dallas has an offense capable of overcoming its defensive flaws</p>