Robert, maybe you miss read or miss understood what I was saying. I never suggested it took Dalglish to make Shearer a great player. His ability was there to see well before he moved to Blackburn. But what I suggested is that it took Dalglish (or maybe it was just coincidental as the player matured at that point and or on his own altered his playing style) to turn him into a prolific and consistent goal scorer.
Also from Wikipedia as I know you value it as a solid source of information:
“Despite this auspicious start to his career, Shearer was only eased into the first team gradually and made just ten goalless appearances for the club the following season. Throughout his career Shearer was recognised for his strength, which, during his time at Southampton, enabled him to retain the ball and provide opportunities for team mates. Playing as a lone striker between wide men, Rod Wallace and Matt Le Tissier, Shearer scored three goals in 26 appearances in the 1989–90 season, and in the next, four goals in 36 games. His performances in the centre of the Saints attack were soon recognised by the fans, who voted him their Player of the Year for 1991. His partnership with fellow striker Matt Le Tissier would eventually pave the way to international success”
Surprised you missed that as its the paragraph before your own pasted quote.