Here's why:
* Subject Pronoun Order: In formal writing, the pronoun referring to yourself should come *after* the pronoun referring to others. So, "I" comes before "my team."
* Subject-Verb Agreement: The verb in a sentence agrees with the subject. Since "I" is the subject, the verb would be in the first person singular form. For example, "I and my team *are* working on this project."
However, in informal speech, "Me and my team" is often used. This is considered grammatically incorrect, but it is very common in casual conversation.