6. translation: 其他人认为这种（终身雇用）制度效率一定不佳，而且认为日本若想保持与那些“重利润，轻人力”的外国公司的竞争力，这种制度将难以为继。

by the way, I don't think it's a good English article. It seems to be writted by some non-native speaker.