Complex sentence: Under the ownership tenure of Calvin Griffith, the Twins'franchise made few headlines in the transaction department, however Smalley's arrival to, and departure from, the Twins both involved blockbuster trades.
Split into simpler sentences: Under the ownership tenure of Calvin Griffith, the Twins franchise made few headlines in the transaction department. However, Smalley's arrival to, and departure from, the Twins both involved blockbuster trades.