Notts County youth team coach Michael Johnson says Keith Alexander was a role model to all aspiring black managers.The Macclesfield boss, who died on Tuesday, became the first full-time black boss in the Football League when he was named Lincoln manager in 1993. [LNB]"There aren't enough black managers who are given a chance when you consider the number of black players," Johnson told BBC East Midlands Today. [LNB]"Keith was a trailblazer - someone I looked up to." [LNB]Alexander's last game was on Tuesday night when his Macclesfield team lost at Notts County.[LNB] [LNB][LNB]Rodwell remembers gentleman Alexander[LNB]"I spoke to him after the game and he was in good spirits," said Johnson. [LNB]"I asked him what I need to do to follow in his footsteps. I could not believe the news when I heard it. [LNB]"It is a massive loss for young black coaches and for football as a whole. We have lost an absolute gentleman." [LNB]Alexander took over as Lincoln manager for the first time in 1993. [LNB]After spells with Ilkeston and Northwich, he returned to Sincil Bank in 2002 with the club in administration and on the verge of folding, and led them to four successive League Two play-off campaigns - the only manager to achieve that feat. [LNB]In November 2003 he collapsed with a double aneurysm, revealing afterwards that he had to be brought back to life three times. [LNB]Alexander left Lincoln by mutual consent shortly after the defeat against Grimsby in 2006 and moved to Peterborough, but left in January 2007. [LNB]He took the position of director of football at Bury before being appointed Macclesfield manager in February 2008.