Ence has young and hungry talents , that can carry the game pretty easy. They have good chemistry and good teamplay.
Example : When u see FaZe u see bunch of aimers , but when u see Astralis you see 5 guys working well with each other , having a great teamplay , structure and chemistry.
Conclusion : Swapping off players wont lead you to success. Better aimer doesnt mean he'll fit the team.
+ At the moment , Ence would be satisfied with reaching top10. They reached #17 just in 3 months unlike SS , OpTiC , AGO , AVANGAR. All they need is time and more experience. SS for example are together for such a long time , has the experience , they have everything and it just doesnt work. Ence are just young inexperienced kids (allu is the only one experienced , that played many tier1-2 event) and already reached more than most teams in 2018.