How to solve these two issues.

1. An American health insurance company hired employees from a variety of racial and ethnic backgrounds. The variety of different native languages and cultures, however, did not mix. Instead of making employees feel that they had a sub-group within their larger team, it gave rise to paranoia ("They must be talking about me.") and assumptions ("They think they are smarter than everyone else."). When the group needed to learn a new intake system, rather than pull together, they became even more estranged and productivity and morale plummeted.
2. In an American subsidiary of a global bank based in Japan, a few Japanese female workers complained to management that their older Japanese male bosses were being disrespectful to them. The human resources manager questioned all of the women in the office. Every Japanese woman reported problems with the Japanese men. In contrast, the American women reported no problems at all. Confused, the human resources manager questioned the Japanese male managers. The answer? The Japanese men responded that they understood American expectations related to sexual harassment, so they were careful about what they said to the American women. They were perplexed by the responses of the Japanese women. "What is the problem?" ?the Japanese men wanted to know, "They know that we don't mean anything. Any Japanese person would understand."