Arsene Wenger is one of a select few who has triumphed over the Premier League's managerial merry-go-round.
Much to some Arsenal fans' frustration, while they look forward to inevitably making it 13 years without a title, the Frenchman is celebrating 20 years at the helm.
Wenger's seen it all in that time, the good, the bad, and the ugly (Kolo Toure adhering to all three of those at various points in his career).
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Le Professeur has also made some brilliant buys over the years. For obvious reasons, we're going to overlook Emmanuel Eboue and Pascal Cygan, but elsewhere, Wenger's definitely shown his eye for a bargain.
As Wenger hits the big 20 - just six and a half years shy of Sir Alex Ferguson's reign at Manchester United - let's take a look at 20 of his best transfers.
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20 - Emmanuel Petit
Petit has Wenger to thank for developing his skills on the ball and turning him into a World Cup winner.
19 - Freddie Ljungberg
The Swede was a key member of the double-winning side, and came in for just £3million. And everyone wanted to have his haircut.
18 - Gilberto Silva
Gilberto Silva is often overlooked as one of the Premier League's great central midfielders, but he used to command the middle of the pitch.
17 - Kanu
Kanu only actually scored 30 times despite being at the club for a few years, but he had a knack of popping up with a goal when Arsenal needed him most.
16 - Alexis Sanchez
Sanchez is arguably one of the Gunners' few world-class talents in the present squad. The Copa America winner has kept their attack going, too, at times when they've been crying out for an out-and-out striker.
15 - Cesc Fabregas
Fabregas' form for Arsenal earned him a move back to Barcelona at their peak, even if Wenger chose not to re-sign him when he moved back to England.
14 - Laurent Koscielny
Koscielny has been transformed into one of the Premier League's centre-backs, but again, he came in on the cheap.
13 - Marc Overmars
Overmars was never quite the same once he moved to Barcelona, but his performances for Arsenal had already written him into folklore.
12 - Sylvain Wiltord
Wiltord didn't always get on with Wenger once he arrived at Highbury, but he won two titles and two FA Cups in the process. Not bad.
11 - Petr Cech
Chelsea may have thought he was finished, but Arsenal had other ideas. The Blues must regret letting him go to one of their main rivals.
10 - Lauren
Wenger not only made an astute signing in Lauren, he also proved his tactical nous by moving him from the midfield to right-back, where he excelled.
9 - Jens Lehmann
Replacing David Seaman was never going to be an easy task, but Jens Lehmann did a pretty good job - barring a few hairy moments.
8 - Kolo Toure
The Kolo Toure of old was a very different one to the defender now at Celtic. Say no more.
7 - Mesut Ozil
Ozil is another world-class talent, on his day, of course. Wenger mastered the transfer brilliantly, watching Spurs lose Gareth Bale to Real Madrid and then snaring Ozil from Los Blancos on the same day, despite Tottenham doing their best to stop that very thing from happening. Cheeky.
6 - Robin Van Persie
RVP left Arsenal having scored just shy of 100 goals. In truth, he deserved to win more than one FA Cup and Community Shield, because he was the striker to fill the void left by Henry.
5 - Nicolas Anelka
Wenger signed for just £500,000 from PSG and transformed him into a top, top striker. Bargains like that don't happen anymore (unless you're Riyad Mahrez).
4 - Robert Pires
Pires was simply brilliant. One of the most memorable 'Invincibles', he was arguably crucial in making Henry as good a striker as he was.
3 - Sol Campbell
Wenger had the audacity to bring in Tottenham's biggest hero (he's not very popular at White Hart Lane now, we should probably add). That could have backfired, but it didn't, and he was a rock in Arsenal's defence.
2- Patrick Vieira
Vieira wasn't quite in Sol Campbell's league when it came to upsetting Spurs fans, but he only ever seemed to score in north London derbies. As a midfielder, too, he was ridiculously hard to get past.
1 - Thierry Henry
There was only ever going to be one winner here. Thierry Henry. 174 league goals in 254 appearances. And that goal against Leeds on his comeback. Arsenal will be lucky to ever find a player of his quality again.
Arsenal fans - who's missing? Who else has Wenger brought in on a great bit of business? Let us know in the comments.
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