By the time Marian Hossa arrived in Chicago he already accomplished quite a lot in the NHL 

As an Ottawa Senator, he was a two-time All-Star who had two straight 70 Point seasons.

Patrick Sharp played the bulk of his career with the Chicago Blackhawks where he was a major part of their success in winning three Stanley Cups (2010, 2013 & 2015).  Sharp was a solid goal scorer for Chicago finishing 8th (2011) and 9th (2014) and he was regarded as a decent two way player who would earn votes for the Selke Award.  The Left Winger was excellent on the penalty kill and would lead the NHL in Short-Handed Goals in the 2007-08 season. 

Tony Amonte is one of the best American born scorers in hockey history and the Chicago Blackhawk were fortunate to have him when he was at his best.  Amonte went to all five of his All Star Games when he played in Chicago where he would score 541 Points for the team and he would have three 40 Goal seasons, two of which were good enough for a second and third place finish in the NHL.

Depending on who you believe, Ed Litzenberger was traded from the Montreal Canadiens for Cash in the hope that it would help what was a struggling franchise.  If that is the case, it was a huge gift as the talented forward would be named the Calder Trophy winner in a year he was traded.  He was not a one season wonder as he would be named to three All Star teams as a Chicago Blackhawk and would finish in the top five three times in Goals.  His best season was in the 1956-57 season where he was fifth in Points and the NHL leader in Even Strength Goals with 30.