No because of HAVE it should be has
Mary Jackson prepared an assignment but John Becker was not ready to approve the result of the assignment which led to the disagreement between them.
It became evident later that John Becker had the wrong input data which made him the wrong party in the disagreement.
Message me rite now , i literally just answered this question but it’s to long to fit here
I believe the answer is Disarranged. meaning it was sloppy, and scattered