In the mid$-2000\text{'}$s$,$ Honda introduced the Crosstour $($shown above$),$ which was a mid$-$sized SUV. While sales of the Crosstour were good, Honda eventually discontinued the model because they found that it was taking away sales from its otherwise popular Honda CRV and Honda Pilot SUVs. This issue with sales after introducing the Crosstour highlights the problem of $\_\_\_\_\_\_\_\_\_\_.($fill in the blank$)$