Apoel doesn't need 1 more world class player other than Almeida. It plays football in the Cyprus Football League and its team is designed to be able to play in Deryneia as well as the Bernabeu. 1 world class striker is required and 2 solid defensive/organisational midfielders that can marathon like Ethiopians (Morais and Pinto). The rest is up to a great coach, an excellent goalkeeper which APOEL has 2 and the rest of the teams in Cyprus do not bother with and a defense that can coordinate.
The wings which is where most of APOEL's goals come from is simply adequate for the standards of the Champions League. Charalambides and Mandouka are competent wingers that can score. They've been drilled in training however that they will only get one chance at goal and to take it, whether they're crossing or scoring.