You may decide to be the trustee of your trust. However, some people select a corporate trustee (bank or trust company) to act as trustee or co-trustee now, especially if they don't have the time, ability or desire to manage their trusts, or if one or both spouses are ill. Corporate trustees are experienced investment managers, they are objective and reliable, and their fees are very reasonable given what they do. (Personally, we think corporate trustees are one of the best bargains out there and would be happy to explain why.)
If something happens to me, who has control?
If you and your spouse are co-trustees, either can act and have instant control if one becomes incapacitated or dies. If something happens to both of you, or if you are the only trustee, the successor trustee you personally selected will step in. If a corporate trustee is already your trustee or co-trustee, they will continue to manage your trust for you.