I read this in an email message.

Problems:
1. Any first-person pronoun should go at the end of a list.
2. An “On behalf of” phrase should never include a first-person pronoun.
3. Reflexive pronouns should not be joined with other nouns.
4. Roles that are not job titles should not be capitalized.

Explanations:
1. One should put others first in a list. Here are two examples:
Incorrect: “He gave it to me and Jim.”
Correct: “He gave it to Jim and me.”
Incorrect: “I and Jim are downstairs.”
Correct: “Jim and I are downstairs.”

2. “On behalf of” implies that one party is doing something as a substitute, proxy, or delegate for another party. So “On behalf of myself” makes no sense and implies either an out-of-body experience or too much pride.

3. Even if problem #1 and problem #2 did not exist, it is incorrect to combine a reflexive pronoun (such as “myself”) with other nouns or noun phrases (such as “other company leaders”).

4. The word “Leaders” is not a job title — at least, not in the context of the problematic sentence — and therefore should not be used in this sentence as a proper noun. So it should not be capitalized.

Solution:
“On behalf of other company leaders, I want to thank you….”