 Structure-only methods both undershoot and overshoot the number and which sets of variables actually control these models, highlighting the importance of the  system dynamics in determining control.
<clarity>  Structure-only methods both undershoot and overshoot the number and which sets of variables actually control these models, highlighting the importance of the  system dynamics in determining control.
 Structure-only methods both undershoot and overshoot the number and which sets of variables actually control these models, highlighting the importance of the actual system dynamics in determining control.