In a document with forms protection, the only edits allowed are in formfields or in unprotected Sections of the document. You could use text formfields for inputting the Position, Employee Name, Date & Reviewer data (though I'd move these out of the textbox you currently have them in) and for the comments/explanations. For Sections V, VI & VIII, you could insert Section breaks either side, then leave that Section unprotected when applying the forms protection. That way, Sections V, VI & VIII could have free text input. You could do the same for the portions titled 'Behaviors, Work Habits, and Attitude issues contributing to rating score above', but that would put visible breaks in the tables.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]