Blues GM Doug Armstrong emphasized Thursday to the St. Louis Post-Dispatch he wants "to get this done as quickly as possible," but understands the numerous factors involved.
Both parties have until Dec. 1 to get a deal done, or Pietrangelo risks missing the entire season.
"We want our fans to know we're working hard to come to resolution with a player we trust and respect and who wants to be in St. Louis," Armstrong said. "We don't take it personally. We think Alex understands it's a business."
Pietrangelo is believed to be looking for a deal similar to the eight-year, $56 million contract Drew Doughty received with the Los Angeles Kings. Pietrangelo and Doughty share the same agents.
"We're going to sign him when we're comfortable and he's comfortable -- and not before that," Armstrong said. "It's not going to be influenced by win-loss record."