-- Big things are going to be expected out of Adrian Amos in 2019.

Arguably the Green Bay Packers' biggest free agent acquisition of the spring, Amos will be testing the waters in a new defensive system -- and for a new defensive coordinator -- for the first time in his career.

Prior to last season's meeting in December, the only other time Amos was on the winning end of a meeting between the Packers and Chicago Bears, his former team, was Thanksgiving night in 2015. Since that season, which was Amos' rookie year, the Bears lost five of the ensuing six meetings.

Little of that is to the fault of Amos, whose contract expired at the end of last season and was allowed to test the market. The Packers quickly pounced on the opportunity to sign him and engineer a heel-turn for Amos.

"It’s a business. It’s all a business," Amos said on Good Morning Football last week. "Let it be known, they let me go into free agency and the Green Bay Packers, they made it well-known they wanted me to play for them. They were out on the forefront of all the teams and basically said we want you and we have a plan for you."

Mike Pettine, his new coordinator, will presumably have all sorts of plans for Amos. A multi-positional weapon to add into the arsenal, Amos played a large portion of his snaps for the Bears last year at free safety; precisely where one of the Packers' most glaring deficiencies is.

The plan last season -- after flipping Ha Ha Clinton-Dix to the Washington Redskins for a fourth-round pick -- was to work cornerback Tramon Williams into the fold at free safety and have him play the remainder of the year there as the starter. While he didn't underperform and may have even exceeded expectations in single-high situations, the 36-year old veteran isn't the solution.

It may be in the Packers' best interest to disregard any new, reconfigured plans to insert Amos as a full-time free safety. While interchanging him wouldn't necessarily be the worst possibility, the Packers still need to aim high for a safety in the draft later this month and provide themselves with the luxury of flexibility.

With the No. 12, No. 30, No. 44 and No. 75 overall picks in the first three rounds of the draft, the Packers will have more than enough talent to choose from when it comes to selecting their next starting safety.

Prospects such as Nasir Adderley, who shares a bloodline with Hall of Famer Herb Adderley, out of Delaware, Mississippi State's Johnathan Abram, Maryland's Darnell Savage and Florida's Chauncey Gardner-Johnson, among several others, headline a deep group of playmakers.

Any scenario that takes place will likely see 2017 second-round pick Josh Jones continue to serve in the box as a hybrid linebacker, as he has yet to demonstrate the ability to play on the back end. The Packers are hoping for a jump in his third season -- similar to that of linebacker Kyler Fackrell's -- but nothing is set in stone with his development.

Amos will have an opportunity to square off against his former team right out of the gate with the Packers scheduled to travel to Chicago for the 2019 regular-season opener.