Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Michael Carrick has credited the return to form which has seen him recalled to the England squad down to the influence of Manchester United manager Louis Van Gaal. The midfielder, hailed by Sir Alex Ferguson last year as the best English player in the game, has won countless club trophies but struggled for consistency at international level throughout his career. Now 33 years old, he is one of the oldest heads in Roy Hodgson’s squad and is a strong contender for a place at the bottom of the midfield diamond the England manager so often prefers to deploy. Michael Carrick is happy to be back in the England squad and has credited his return to Louis van GaalMichael Carrick has been recalled to the England squad by Roy HodgsonManchester United midfielder credits his return to boss Louis van GaalCarrick says Dutchman's management has improved him this season33-year-old credits Van Gaal's aura and his straightforward natureCarrick has been watching the top midfielders around Europe to improve 
 Question:Carrick had particular praise for the _ manager's aura and straightforward nature.

Manchester United