The Derby cult hero is sad to see Marriott and the Rams struggle this term and sought to explain how he and the Pride Park side could both improve.
Derby County have failed to win their last four Championship games.
Jack Marriott scored his first goal of the new Championship season as Derby County lost 2-1 to Bristol City at Pride Park.
Derby County host Bristol City in the Championship on Tuesday.
The Derby forward has been compared to one-time Rams coach Phillips, who won the European Golden Shoe while at Sunderland.
The Rams played out a goalless draw with the Swans at Pride Park and Marriott only came on in the 80th minute.
Leeds United are on the look out for a new forward, and Derby County's Jack Marriott could be just what they are looking for.
The Rams striker - who didn't start in the Championship playoff final - scored a brace in Florida.
Kortney Hause is on loan at Aston Villa from Wolverhampton Wanderers, while Anwar El Ghazi is on loan from Lille.
Nottingham Forest feel that Martin O'Neill should move to attempt to sign Jack Marriott from Derby County this summer.
Arsenal midfielder Dani Ceballos called for supporters to put on a united front, but the message did not seem to work.
Christian Eriksen is out of contract at Tottenham Hotspur at the end of the season as there is only one place he is seemingly heading towards.
Leeds United youngster Liam McCarron impressed for the under-23s last night.
The former Leeds United midfielder had a rotten loan at Elland Road.
Rangers failed to bring Derek McInnes to Ibrox in 2017.
Liverpool beat Tottenham Hotspur 2-1 at Anfield on Sunday afternoon.
Celtic will have Andrew Gutman back at Lennoxtown very shortly.
Leeds United loanee Jay-Roy Grot had a row with a team-mate last week.
Arsenal striker Pierre Emerick Aubameyang could lead be example if given the responsibility of taking over from Granit Xhaka.
Anthony Gordon has scored six goals in eight games for Premier League strugglers Everton at youth level this season.