I have been looking at these messages for a while and I feel that it gives an idea of how fast they will grow their attributes. Combine this with potential and it will let you know where they will end up as a senior. Saying this, potential is how much they can grow, these statements are how they grow. Keep in mind growth is also related to playing time (and also seems to promises - Fr/So start, % playing time). So, keeping the statement above, you can assume slow growth over his career, with total growth being limited by playing time and potential. Kinda like a VL rating for growth. So the messages, 'You will like this kid's work ethic', 'Always seems to want to get better' - etc may mean a VH growth level for all 4 seasons. Where the sayings of 'May not continue to work hard' etc may mean fast growth at Fr or So then a slowdown in growth. I have tracked which player is "Most Improved" on my teams for many seasons and am surprised when A rated players outperform VH players, just because of the growth attributed to these statements.