Around £3.5million was spent on the acquisition of Magnus Wolff Eikrem from Heerenveen and Molde duo Mats Moller Daehli and Jo Inge Berget.
Solskjaer told VG: "I brought the lads here because I know them from the past.
"I know their attitude and they will prove their quality in time. Of course, some have made a better impression than others.
"But I believe that people who have seen the matches have noticed that we have got some promising talents that will give us a boost."
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