Lowell MacDonald was claimed by the Los Angeles Kings in the Intra-League Draft, and realistically, there was no reason to believe that when the Penguins chose him that he would be a productive player in the NHL.  That being said, his was the strange expansion world of the 1970s, and that is precisely what he would become.  

Despite the fact that he was a proven scorer with the Maple Leafs, he was not a fan-favorite in Toronto, and as the Leafs were looking to rebuild anyway, Kessel was shopped around in the summer of 2015.  They found a taker in Pittsburgh, and it turned out to be one of the smartest transactions that the Penguins ever made.

Martin Straka came to Pittsburgh as a 1992 1^st Round Pick from Czechoslovakia, and he debuted that year, appearing in 42 Games for the team.  Straka would have a strong sophomore season where he had 64 Points in 1993-94, but the young forward was traded for a pair of gritty performers in Troy Murphy and Norm MacIver.  This deal would, however, not be the end of Straka in Pittsburgh.

Dave Burrows debuted in the NHL in 1971 with Pittsburgh after he was claimed from the Chicago Blackhawks in the Intra-League Draft.  Burrows was a defensive cornerstone for the Penguins in the '70s focusing on his end of the ice.  Twice named an All-Star with Pittsburgh (1974 & 1976), Burrows would finish 10^th Hart Trophy voting in 1975-76.  He wasn’t known for scoring but did accumulate 108 Assists for Pittsburgh.