All... But I think Free Agent bidding and Draft are the main one.
Vikings send 2016 3rd round pick
to Packer for C J.C Tretter
Ovr: 71 Height: 6'4'' Weight: 307
Age: 24 Development: Avg XP: 478
College: Cornell
Career: 2 Year(s) Drafted : 25th Pick, 4th Round
Contract: $2.10M / 4 Years $0.40M Signing Bonus
Salary: $0.58M Years Left: 2 Cap Penalty: :$0.20M
Dolphins send WR Jarvis Landry + 2016 4th round pick
Jarvis Landry #14 WR
Ovr: 90 Height: 5'11'' Weight: 202
Age: 22 Development: Avg XP: 449
Career: 1 Year(s) Drafted : 31st Pick, 2nd Round
Contract: $2.20M / 4 Years $1.00M Signing Bonus
Salary: $0.75M Years Left: 3 Cap Penalty: :$0.75M
To Vikings that send 2016 2nd round pick + CB Trae Waynes + WR Charles Johnson
Charles Johnson #12 WR
Ovr: 79 Height: 6'2'' Weight: 215
Age: 26 Development: Avg XP: 1126
College: Grand Valley St.
Career: 2 Year(s) Drafted : 10th Pick, 7th Round
Contract: $1.53M / 4 Years $0.00M Signing Bonus
Salary: $0.38M Years Left: 2 Cap Penalty: :$0.00M
Trae Waynes #26 CB
Ovr: 71 Height: 6'0'' Weight: 186
Age: 23 Development: Fast XP: 536
College: Michigan St.
Career: Rookie Drafted : 11th Pick, 1st Round
Contract: $4.80M / 4 Years $6.60M Signing Bonus
Salary: $2.75M Years Left: 4 Cap Penalty: :$6.60M
Dolphins send WR Jarvis Landry
Jarvis Landry #14 WR
Ovr: 90 Height: 5'11'' Weight: 202
Age: 22 Development: Avg XP: 449
Career: 1 Year(s) Drafted : 31st Pick, 2nd Round
Contract: $2.20M / 4 Years $1.00M Signing Bonus
Salary: $0.75M Years Left: 3 Cap Penalty: :$0.75M
Vikings send 2016 2nd round pick + CB Trae Waynes + WR Charles Johnson
Charles Johnson #12 WR
Ovr: 79 Height: 6'2'' Weight: 215
Age: 26 Development: Avg XP: 1126
College: Grand Valley St.
Career: 2 Year(s) Drafted : 10th Pick, 7th Round
Contract: $1.53M / 4 Years $0.00M Signing Bonus
Salary: $0.38M Years Left: 2 Cap Penalty: :$0.00M
Trae Waynes #26 CB
Ovr: 71 Height: 6'0'' Weight: 186
Age: 23 Development: Fast XP: 536
College: Michigan St.
Career: Rookie Drafted : 11th Pick, 1st Round
Contract: $4.80M / 4 Years $6.60M Signing Bonus
Salary: $2.75M Years Left: 4 Cap Penalty: :$6.60M