Flo, who scored 50 goals and won three major trophies in three years at Stamford Bridge, thinks manager Frank Lampard could try playing with two up top.
Flo told Bookmakers.co.uk: "I think they can work together.
"I don't think they've quite found the right rhythm to maximise a partnership just yet, but I think they can do – there's more to come.
"As a striker you need goals and finally Werner found the net again and hopefully that can instill confidence and he'll continue to score.
"He's more than capable of doing well in the league, it's just about getting a few goals and getting that confidence up."
Flo currently works with the club's loan players but previously worked as a coach in the academy - and knows Abraham from his time there.
On the England striker, he added: "I think he's a very good player, I've known him for a long time having worked with him at the academy when he was younger.
"He's got great potential and I think he's done well to compete among these superstars that Chelsea have bought.
"He can be pleased with how he's doing when he gets minutes on the pitch and he's proven that he can score goals, so he's a valuable player in the Chelsea squad and, given he's only 23, I think we'll see more of him in the future."