Dynamic? We don't know that about either one of them. In fact, I would say neither one of them is. Betts is dynamic. Devers could be. Neither Lin nor Swihart are in that league.
Lin came up last year and went 9-25 his first 10 days or so. He then went 6-31 for the rest of the season. His minor league stats don't show anything special.
Neither has Swihart shown that much either, Granted, he's been hurt for 2+ years, and he showed some promise in 2015, but he wasn't that great.