Again the simple answer is NO! Modeling agencies are not employers. They represent you and try to get work for you. Most of the time they don’t know for sure what type of job will come in or what ‘look’ may be needed, thus there is no way a legitimate agency can guarantee you work. The best they can do is to give you an idea of their track record on placements. But remember that past performance is no guarantee of future performance and the client always makes the final hiring decision so you want to make a good, lasting impression!