The Dutchman is expected to take on a bigger role with the national team after Giggs was stood down from the side’s three upcoming matches following his arrest on suspicion of assault.
Stuivenberg has been part of Giggs’ coaching team since 2018 before also taking up a role under Mikel Arteta at the Emirates last year.
But Mourinho is very worried about Bale’s workload, having only just returned from injury, and has questioned whether an Arsenal coach should have such a big say over how much the Totteham winger plays over the two-week international break.
‘It is not Giggs responsible for these matches and I’m sorry about it,’ said the Portuguese coach ahead of his side’s clash with West Brom on Sunday.
‘Because for the previous fixtures he called me, we spoke about Ben Davies – not Gareth because Gareth was not there – and we shared opinions on the situation, which is probably not going to happen this time.
‘National team matches should have coaches that work exclusively for them, not coaches who work for other clubs.’
Bale started against Ludogorets in the Europa League on Thursday though is yet to play 90 minutes since returning to Spurs, with Mourinho saying he must be handled with care.
He continued: ‘It is about managing the situation and keeping him safe. He’s a player that needs to be safe, he’s a player that had enough problems in the past.
‘He’s working so much and we’re all working so carefully with him that we don’t want to destroy the work everybody is doing for the last couple of months.
‘Wales has two matches where they play for the Nations League and I expect him to play. But if they care as much about him as we do, they have to manage the recovery period. They have to manage the minutes that he plays and they should not let him get to fatigue levels.’