What position did Steve Smith Sr. primarily play?

What position did Wes Welker primarily play? Wes Welker is best known for playing with which NFL team? Which college was Wes Welker playing for when he entered the NFL? What jersey number did Wes Welker wear with the Patriots? Steve Smith Sr. is best known for playing with which NFL team? Which college was Steve Smith Sr. playing for when he entered the NFL? What jersey number did Steve Smith Sr. wear with the Panthers? What position did Amon-Ra St. Brown primarily play?