He has enjoyed 10 good years with the presence of wealth, promotion and great network in the current luck pillar (till 37 years old). In the upcoming 10 years, he may face some challenges.
He has relatively strong metal element, DO, in his chart. This implies that he can be quite stubborn/rigid/principled (hidden) and this is going to be rather apparent in the upcoming 10 years with Xin metal appearing in his luck pillar. Due to this, it may affect his relationship with his boss/clients/network/staff.
Some suggestions to reduce the negative impact :
(a) Aware of the negative aspect of a strong DO and change.
(b) Listen and respect other people's perspective and ideas.
(c) Be open to new ideas. Recognize current method/his way may not be the best way.