What is the difference between 'the post is to be always held by....' and 'the post is always held by....'?

What is the difference between 'the post is to be always held by....' and 'the post is always held by....'?
"The post is to always be held by..."

This language notes what should be, as in a policy, guideline or rule.

"The post is always held by..."

This language notes what actually happens.