Associated Press
FILE - In this Aug. 10, 2011, file photo, former Tennessee Titans head coach Jeff Fisher watch the Detroit Lions practice at NFL football training camp in Allen Park, Mich. A person familiar with the decision says Jeff Fisher has accepted an offer to coach the St. Louis Rams. The person confirmed the agreement to The Associated Press on Friday, Jan. 13, 2012, on condition of anonymity because the hiring hadn't been announced. (AP Photo/Paul Sancya, File)

ST. LOUIS — The St. Louis Rams have scheduled a news conference to introduce Jeff Fisher as their new coach, having finalized contract details.

The announcement for 1 p.m. CST Tuesday came amid reports Saints defensive coordinator Gregg Williams has agreed to join Fisher's staff in the same role.

The Rams on Friday agreed to a deal with Fisher, who sat out last season after 17 with the Titans. Fisher was the top coaching candidate this offseason and picked St. Louis, 2-14 last year and with only 15 wins the last five years, over Miami.

Fisher and WIllliams, both 53, were together in Tennessee from 1994-2000.