The 55-year-old Scot is 'excited' about the challenge ahead after agreeing to become the new Albion boss on Saturday.
Irvine said: "I'm absolutely delighted to get the job.
"I've got a great deal of respect for the club right the way from the first team through to the Academy.
"The situation at this club is similar to what I went through at Everton when I went there with David (Moyes).
"It is run very sensibly and, as a result of that, any head coach coming in has got a great chance of doing a good job.
"A number of the players who have had success in the Premier League with the club are still here.
"But it's a small squad at this moment in time and, clearly, the first job is going to have to be to get some more players in.
"My passion is for coaching and I believe my strength is on the training ground, which is where we need to get the work done."
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