If interview board fails to hire the right people to the right position, what would be happen?

For that case we have probation period

On of the crucial part in the organization is recruitment and selection,once the organization fail to recruit the right person to right position defiantly its de motivate the entire organization and increase the total cost. Usually what will happen is that gossip are spread across the  department  and demotivate  the entire team performance.

The productivity shall be reduce through ideal the  human being in the department, has not taken place any idea generation and innovation  

It would impact in the hiring cost and dissatisfaction. Even though the probation period is there, it would be a burden again to process another selection.