The key thing here is to look at the number of of international titles won by each coach with different sides before arriving at your conclusion.International titles include the world cup,european championship,african nations cup,continental champions league etc,excluding titles won in the local leagues.my list includes;
1. Vicente del bosque- 2 champions league titles with madrid and 1 world cup with spain, still counting
2. Hassan shehata- 1 champion league with Ahly national and 3 back-2-back nations cup with egypt
3. Ottmar Hitzfeld- nicknamed the german general,masterminded two champions league title wins with borussia dortmund and bayern    munich in the late nineties
5.Josep Guardiola- 2 champion league titles with Barca, still counting
4.Arrigo Sacchi- won back-2-back champions league with AC Milan in the early nineties,argueably the greatest club footblling side the world has ever seen

ETHIOPE:

The key thing here is to look at the number of of international titles won by each coach with different sides before arriving at your conclusion.
5.Josep Guardiola- 2 champion league titles with Barca, still counting

Inspite of the fact that your "criteria" are objective, your list of 5 is highly biased.
When did Guardiola win titles with different sides except Barca?

How come Mourinho who had done it with 2 different sides Porto and Inter not make your list if u are truly objective?

Good observation,Mourinho should be tied on number three on the list

Caught redhanded