Other than the first season of Ange Postecoglou's time as manager, Celtic's transfer activity in recent years has been questionable and produced very few positive results. The 2020 summer window is remembered particularly by the supporters because of what followed, a failed attempt to win 10IAR and a trophyless season following the Quadruple Treble.
None of the signings made that summer worked out. The only one who has made some positive contribution over the years is David Turnbull and even he has been a squad player for most of his time in Glasgow.
The marquee signing from that summer was Albian Ajeti. The Swiss striker was brought in from West Ham United for a transfer fee believed to be around £5 million.
Initially, the suggestions were that he would only be arriving on loan. But it turned out to be a permanent move instead. It quite clearly did not work out.
£5 million Celtic signing released by new club after four months
Ajeti made a bright start to life at Celtic and was once averaging a goal every 47 minutes in league competition. But his form faded away soon and he never rediscovered it.
Ajeti would leave Celtic in the summer to join Turkish side, Gaziantep FK. Things did not work out for him there either and it looks like his time at the club has come to an end already.
It remains to be seen what the future holds for Ajeti. A return to Switzerland might be the best step for him because that is where he has found the majority of his success in the senior game and even made it to the international level.