由于业绩不佳，公司决定更换销售经理。

The company decided to replace the sales manager due to the ___underperforming results.

基金经理决定抛售那些表现不佳的股票。

The fund manager decided to sell those ___under-performing stocks.

这支球队表现不佳，未能发挥出应有的水平。

The team is ___under-performing and not reaching its full potential.