I keep going back to Rizzo as an offensive comp. Rizzo was 22/23 in the 2012 season, and he split the year pretty evenly between Iowa and Chicago. He put up an 1.101 OPS in Iowa and .805 in Chicago, and that's roughly in the neighborhood of the drops we've seen from just about everyone graduating from Iowa to Chicago lately (except Junior Lake, for some reason). Bryant turns 23 next January and has an 1.138 OPS with a higher K-rate and much higher BABIP than Rizzo did. He's also had less time as a pro so I think he has more room to improve quickly than Rizzo did, so I kind of want to just call it all a wash and expect an .800 OPS from him in his first year too. With average-ish 3b defense, that's roughly a 3.5-4 win player.